21 mml solar location question.

[TowPro]

My 2024 21mml has the factory 200w solar with the gopower PMW bluetooth controller mounted in the wall.
The dealer added a 2nd 200w panel as part of the sales agreement.

I have verified that the 12V Positive (red) output wire from the solar controller goes to the drivers side forward cabinet, behind the panel that has the battery disconnect on it.

The solar drawing shows the 12V negative (black) output wire from the solar controller goes to the Chassis. A quick call to Jayco (and after a couple minute hold) they told me this negative output wire is terminated to RV frame in the front near the battery hookup.

Has anybody out here verified this?

I want to replace my Gopower PMW controller in wall by splicing the wires in wall so they pass through, than put a Victron MPPT (100/50) in the front basement.

if I recall there was 3 negative wires connected to chassis at this point.
I think all 3 are 8 gauge stranded wire.

1: battery negative. (the battery positive goes to 2 auto reset circuit breakers near this spot, 1 of which is labeled refrigerator).

2: Solar negative output? the solar positive goes to power switch in cabinet.

3: internal charger negative output? the internal charger positive goes to power switch in cabinet.

 

[TowPro]

Pulled the dolar controller out of wall. The output wires are 8g, red positive gois to side cabinet around battery switch, white with yellow highliter stripe is negative output and goes to box in front of trailer where it has a wire nut in box before goung to frame.