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Parts Needed to Connect Go Power PowerTrak Screen, Inverter, and Solar Charge Controller  

Updated 02/10/2026 | Published 02/06/2026

Question:

What cables are needed to tie my solar controller, my inverter/charger, and my touch screen together so they will all talk to each other?

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Expert Reply:

Hey Brad! I just went over this with Dometic/Go Power and you will need several wiring harnesses in addition to the # GP74XR you already picked up. To connect the Go Power PowerTrak Screen # GP64XR, Pure Sine Wave Inverter Charger # GP85QR, and MPPT Solar Charge Controller # GP32QR you will need the following:

-GP-RVC-PT-TR - RVC Terminating Resistor Harness # GP84XR

-GP-RVC-EXT-25 - RVC Extension Harness, 25' (the # GP74XR you have)

-GP-RVC-PT-BC - RVC Branch Connection Harness # GP88QR

-GP-RVC-BC - ADV LFP RVC System Harness # GP66QR

-GP-RVC-EXT-5 - RVC Extension Harness, 5' # GP24XR (Optional)

The parts that aren't linked are parts we don't carry right now. I have submitted them so they can be added to our site. You can't get them on the Go Power site right now apparently either because they're down for maintenance (they said it should be up in a few days). I'll follow up once we have them available.

I went ahead and attached the full list from their configurator below, along with their example wiring diagrams. If you need anything else in the meantime let me know in the comments below.

expert reply by:
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Robin H
Go Power Parts List
Go Power Parts List
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Wiring Diagram
Wiring Diagram
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Communications Connections
Communications Connections
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