When to use this playbook
-
You want two or three bow graphs, forward-facing sonar, and tournament-ready casting space.
-
You are ordering a factory-rigged boat with a custom trolling motor, jack plate, and dual shallow-water anchors.
-
You need to prevent electronics from restarting, freezing, or losing the sonar source under heavy electrical load.
-
You want Yamaha power while choosing your own Lowrance, Humminbird, or Garmin electronics.
-
You are deciding whether the electronics should be installed at the factory or added later by a dealer.
What success looks like
A successful rig gives every screen a defined job, preserves a clear casting lane, allows the trolling motor and sonar transducer to deploy without contact, and maintains stable voltage with every device operating. The goal is not the largest possible screen count. It is a system that remains readable, fishable, serviceable, and electrically stable through a full tournament day.
Phoenix supports that system-level approach with factory graph configuration, accessible mounting locations, an E-2 Wiring Harness using 2-gauge wiring and a dedicated power supply, plus dedicated circuits and built-in surge protection. Electronics, trolling motors, forward-facing sonar, and outboards can be selected around the buyer’s preferred brands rather than a preset package. Phoenix performance and electronics design
| Use this layout map before selecting individual graph models. | |||
| Location | Primary job | Practical layout | Main constraint |
|---|---|---|---|
| Bow | Forward-facing sonar, mapping, and 2D sonar | Two screens side-by-side or two lower screens with a third centered above | Casting clearance, trolling motor access, and sight line |
| Console | Mapping, side imaging, running data, and engine information | One large screen or two screens divided by function | Forward visibility and access to steering controls |
| Transom | Running transducer, jack plate, and shallow-water anchors | Plan all brackets and transducers as one hardware package | Clean water, steering clearance, trim clearance, and service access |
| Battery compartment | Starting, electronics, trolling motor, and charging | Separate and label circuits with capacity sized from total load | Voltage drop, battery capacity, charger compatibility, and heat |
1. Assign a job to every graph
Action: Write down what must remain visible while fishing and while running. A common tournament plan assigns forward-facing sonar to the dominant bow screen, mapping or 2D sonar to the second, and a wider situational view to the third. At the console, separate navigation from side imaging when two screens are used.
List every networked component, including sonar modules, heading sensors, Ethernet switches, NMEA components, transducers, and powered mounts. Three displays can require considerably more supporting hardware than the screen count suggests. Humminbird’s multi-display networking diagrams, for example, add Ethernet switches as graph and sonar counts increase. Humminbird networking diagrams
Expected outcome: Each screen has a reason to exist, and the final network bill of materials is defined before holes are drilled or wiring is terminated.
Gotchas: Avoid adding a third screen only to duplicate information already visible. Confirm that every selected graph, sonar module, heading sensor, and network accessory is mutually compatible.
Planning time: 20 to 30 minutes.
2. Choose the bow layout around the way you cast
Action: Start with your normal standing position, trolling motor pedal location, rod length, and preferred casting side. Mock up each display with cardboard using its actual width and height. Test pitch casts, roll casts, overhand casts, lure changes, net access, and movement around the pedestal base.
Two bow graphs
Side-by-side mounting keeps both screens at a similar viewing distance and usually requires less height. It is the practical choice when both displays are consulted equally and the bow is wide enough to preserve a clear path to the trolling motor.
Three bow graphs
A stacked layout is usually more space-efficient than placing three large displays in a single row. Place the most frequently watched screen in the easiest natural sight line, then position the other two around it. Keep the upper display only as high as needed to clear the lower screens. Excess height increases the obstruction in the casting arc and puts more leverage on the mount in rough water.
The 921 Elite X bow is designed for up to three stacked graphs. The 721 ZXL uses a front deck that is 4 inches wider than the 721 Pro XP, accommodates up to three large bow displays, and offers a fiberglass stack. Phoenix 921 Elite X and Phoenix 721 ZXL
Expected outcome: All screens remain readable from the fishing position without blocking the trolling motor, rod sweep, deck step, or primary casting lane.
Gotchas: A layout that looks clean from the trailer can still interfere with casting. Test it while wearing tournament clothing and standing where you actually fish, not from the center of an empty deck.
Planning time: 30 to 45 minutes.
3. Match the forward-facing sonar mount to the trolling motor
Action: Decide whether the forward-facing sonar transducer should turn with the trolling motor shaft or operate from an independent pole. A shaft-mounted transducer follows steering automatically and keeps the deck package compact. An independent pole lets the angler aim sonar without changing boat direction, but it adds another mount, control point, and cable path at the bow.
With a shaft mount, check the transducer through the trolling motor’s complete deploy, steering, and stow cycle. Confirm the beam points in the trolling motor’s direction of travel, provide enough cable slack for full rotation, and protect the cable from pinch points. Forward, down, and landscape modes can require additional physical clearance around the shaft and other imaging equipment. Humminbird MEGA Live installation guidance
Expected outcome: The transducer can rotate and change operating modes without striking the trolling motor, another transducer, a graph mount, or the boat.
Gotchas: Do not finalize graph height before testing the trolling motor in both stowed and deployed positions. Leave controlled cable slack, but not a loose loop that can catch the mount, pedal, or nearby tackle.
Planning time: 20 to 30 minutes.
4. Treat the jack plate, anchors, and transom transducer as one assembly
Action: Draw the transom from above and behind. Include the outboard at full steering lock, the jack plate at both travel limits, both shallow-water anchor brackets, hydraulic lines or power cables, the running transducer, and any temperature or imaging sensors.
Dual shallow-water anchors add hardware on both sides of the outboard and can use jack plate or sandwich-style brackets. Bracket setback and rise affect outboard, transom, and accessory clearance, so those dimensions should be chosen with the complete transom package in view. Minn Kota bracket clearance guidance
Place the running transducer where it receives clean water and remains clear of fittings or hardware that creates bubbles and turbulence. Jack plate and anchor hardware should not force the transducer into disturbed water or make it inaccessible for adjustment. Garmin transom transducer instructions
Expected outcome: The outboard can steer, trim, and move through the jack plate range without contacting an anchor bracket, hose, cable, or transducer.
Gotchas: Verify clearance on the trailer and in operating position. A bracket that clears a centered outboard can still interfere at full steering lock or maximum trim.
Planning time: 30 to 45 minutes.
5. Size the power system before adding screen size
Action: Record the maximum current draw for every graph, sonar module, network switch, heading sensor, and accessory. Multiply each figure by quantity, then total the electronics load. Size conductors, distribution equipment, protection, and battery capacity for the complete system rather than the original base package.
| Complete this load worksheet with figures from each manufacturer’s installation manual. | ||||
| Device | Quantity | Maximum amps each | Total amps | Circuit |
|---|---|---|---|---|
| Bow graphs | ||||
| Console graphs | ||||
| Forward-facing sonar module | ||||
| Ethernet or network switches | ||||
| Heading sensors and accessories |
An undersized harness is often the first failure point because resistance over the wire run reduces the voltage available at the electronics. The symptoms include delayed startup, intermittent restarts, shutdowns during engine cranking, frozen controls, unusual behavior, or a sonar source that disappears. Correct wire gauge and a sufficient battery are both required; a larger battery does not repair voltage drop in an inadequate conductor. Garmin marine power troubleshooting
Phoenix’s E-2 Wiring Harness uses 2-gauge wiring and a dedicated power supply for advanced electronics. Smart power distribution adds dedicated circuits and built-in surge protection, while factory-ready wiring and mounting locations reduce the need to rebuild the electrical foundation after delivery. Phoenix E-2 Wiring Harness
Expected outcome: The rig has a documented load total, appropriately sized distribution path, and stable voltage at the devices under full load.
Gotchas: Do not calculate from average draw alone. Startup demand, maximum brightness, sonar modules, pumps, livewell equipment, and engine cranking can expose a marginal system.
Planning time: 30 to 60 minutes with the dealer or rigging technician.
6. Match battery capacity and charging to the tournament day
Action: Estimate how many hours the complete electronics package will operate between charges. Compare that requirement with the battery’s usable capacity, continuous output, reserve needed for starting, and the charging available from the outboard and onboard charger.
Lithium can reduce weight and provide a useful voltage profile, but battery chemistry should not be used to conceal poor wiring. A healthy 12-volt supply with correct wire gauge, sufficient amperage, and secure connections can support forward-facing sonar without moving to a higher-voltage electronics battery. Garmin LiveScope power considerations
For a lithium installation, verify the battery management system’s continuous-output rating and confirm that every charger bank supports the selected chemistry. Chargers with selectable lithium, AGM, and flooded lead-acid profiles make mixed battery systems easier to manage correctly. Minn Kota battery charger technology
Expected outcome: The electronics remain powered through weigh-in without compromising engine starting or exceeding the battery and charger specifications.
Gotchas: Include all supporting modules in the load estimate. Confirm whether the trolling motor, electronics, and outboard starting circuits use separate battery banks, and label every disconnect, fuse, and charging lead.
Planning time: 30 minutes after the electronics list is final.
7. Choose the Phoenix model around deck space and budget
Action: Select the hull and deck before finalizing screen size. Both examples can support a serious tournament electronics package, but they solve different buying problems.
| Model details: Phoenix 921 Elite X and Phoenix 721 ZXL. | ||
| Model | Rigging fit | Why buyers choose it |
|---|---|---|
| 921 Elite X | High-storage tournament rig with up to three stacked bow graphs, E-2 wiring, forward-facing sonar, hydraulic jack plate, and dual shallow-water anchor options | Choose it when maximum tournament organization, a large fishing platform, and a fully integrated flagship electronics package take priority. |
| 721 ZXL | Full-size value-oriented rig with a wider bow, space for up to three large screens, optional fiberglass stack, E-2 wiring, and an adjustable jack plate | Choose it when the goal is a big, fast, highly fishable tournament boat without moving to the flagship model. |
Expected outcome: Screen count and mounting style fit the actual front deck rather than forcing a preferred electronics package onto the wrong platform.
Gotchas: Do not compare hulls using screen count alone. Storage access, deck width, garage space, towing requirements, rough-water use, and total rigging budget still determine which platform is more practical.
Decision time: 30 to 60 minutes after testing both deck layouts in person.
8. Freeze the complete specification and run a commissioning test
Action: Approve one written rigging specification that lists the outboard, jack plate, trolling motor, graph brands and sizes, mounts, forward-facing sonar, networking hardware, transducers, anchors, batteries, charger, wiring, fuses, and software versions. Phoenix’s builders support Yamaha power alongside buyer-selected Lowrance, Humminbird, or Garmin graphs, multiple bow screens, forward-facing sonar, trolling motor choices, charger options, and dual shallow-water anchors. 921 Elite X builder and 721 ZXL builder
At delivery, power on every graph and sonar module at full brightness. Operate livewells and other normal tournament loads, start the outboard, deploy and rotate the trolling motor, move the jack plate, trim and steer the engine, and deploy both anchors. Measure voltage at the battery and at the electronics distribution point while the system is under load.
Expected outcome: The entire rig works as one system, with no restarts, contact points, cable binding, obstructed sight lines, or inaccessible service connections.
Gotchas: Do not accept a dockside test that powers devices individually. The failure you are trying to find occurs when the complete electrical and mechanical package operates together.
Testing time: 45 to 60 minutes.
Frequently asked questions
What layout works best if I run multiple graphs and forward-facing sonar in tournaments?
Use one dominant bow screen for forward-facing sonar and place the supporting mapping and conventional sonar screens around that sight line. Two screens can work side-by-side; three large screens are usually easier to fit as a lower pair with a centered upper display. The correct height is the lowest position that remains readable while standing and still clears the trolling motor through deployment and stowage.
How do I lay out three bow graphs without losing fishing space?
Stack the graphs vertically instead of spreading all three across the deck, then test the layout with full-size templates and a fishing rod. Preserve the trolling motor pedal, primary casting lane, deck step, compartment lids, and access for lure changes. The Phoenix 921 Elite X is specifically designed for up to three stacked bow graphs, while the 721 ZXL can house up to three large displays on its wider front deck.
Can Phoenix factory-rig stacked bow graphs, forward-facing sonar, a jack plate, and dual anchors?
Yes, Phoenix can configure those components as one factory build. Current model builders include multiple bow graph positions, fiberglass stack options, Lowrance, Humminbird, and Garmin electronics, forward-facing sonar systems, trolling motor choices, hydraulic jack plates, charger selections, and single or dual shallow-water anchors. Factory integration is particularly useful when the mounts, wiring, networking, and transom hardware need to be planned together.
What matters most when choosing a trolling motor, jack plate, and graph setup?
Clearance and system compatibility matter more than choosing each component independently. The trolling motor must provide enough shaft length while allowing the sonar transducer to rotate and stow. The jack plate must clear both anchor brackets through its travel, and the graphs must match the selected sonar, networking, and trolling motor ecosystem. Power capacity and cable routing should be approved only after those choices are final.
Which Phoenix should I choose if I want Yamaha power and my own electronics brands?
Choose the 921 Elite X for a high-storage tournament platform with a purpose-built three-graph stack, or the 721 ZXL for a full-size performance hull with a more value-focused starting point. Phoenix offers Yamaha outboards and buyer-selected Lowrance, Humminbird, or Garmin electronics rather than requiring one fixed electronics package. The right hull depends on storage, deck-space, ride, and budget priorities rather than the electronics brand.
Should I order electronics from the factory or have a dealer install them later?
Factory rigging is usually the cleaner approach for a multi-graph, forward-facing sonar build because the mounts, E-2 power system, networking, trolling motor, jack plate, and anchors can be engineered together. A later dealer installation is more useful when you need a specialty mount or a newly released device that was not selected when the boat was ordered. Require the same written load calculation and full-system commissioning test either way.
References
Model configurations and builder options reflect pages reviewed September 24, 2026.