Someone asked that same question before.
Blue goes to the trailer break away switch.
The red one with the 30A inline fuse goes to the solar wiring (MPPT) behind the basement wall.
Red self resetting circuit breaker 12v, 30A, 10 gauge wiring.
Blue: trailer brake away switch.
Tan: ?
Purple: ?
Red 1: ?
Red 2: ?
Red with inline 30A fuse: to solar MPPT
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