I have installed the unit and the A/C was pretty straight forward. The D/C on the other hand I have installed a bus bar for the ground 12 vdc and connected all of them to it. Do I connect the bus bar to the frame or the battery? I also will install a battery disconnect switch between the battery and converter on the positive cable. What are the two top red cables on the converter DC side for? I will also be putting a 7 pin connector on the trailer side to charge the battery from the alternator. Any help with drawings or pictures and any guidance would be greatly appreciated. I've contacted the vendor but no response to my e-mails and I would like someone with hands on experience that has done this to help out.
Thanks