Imho, those burnt wires are from corroded crimps and contacts; (higher resistance) and/or possibly the GP's running longer that intended.
Each GP pulls around 15amps so the wiring needs to support it. The factory is a little chintzy on the wire size because they're not meant to energized for very long.
Each GP pulls around 15amps so the wiring needs to support it. The factory is a little chintzy on the wire size because they're not meant to energized for very long.