12v wiring issue! All lights work and then they don't...? we think it's either a fuse,wiring or both?  We already changed the 30 amp fuse outside closest to the battery. Question: In the 96 wiring diagram it shows 2nd fuse "under" bunk bed. We don't have bunk beds and no bathroom. Its just storage and a countertop. So where the heck is the second fuse junction? Thanks