I have a 2012 Jayco Sport 12 that has never had an aux battery hooked up. There is a battery for the brake disconnect and I understand that it was prewired for aux battery. How do I install one?? I understand that there is a black wire for positive and white for negative for battery. Do I just place connectors on these for the battery??
When I had Baja, it came with one battery so I added a second one. Bought a battery, box and one black and one red battery wire. Had room one the front deck.
White should ground and black positive. You can check with a multi - meter.