Brand new to this forum, thanks for the welcome. I have a 2019 Pinnacle 38FWLS. It has the roof solar prep. I have found the positive side from the roof top next to the battery cutoff switch connected to a 30 amp fuse, it also has a black wire there connected on the same fuse. The label says Tow vehicle charge line then roof solar prep, one is red and one is black.
Can any body tell me where the Negative side for the roof solar prep is located ?