Rookie question here- hope I'm posting in the right area. I'm trying to identify two disconnected wires on the passenger side firewall of my 1988 FJ62. I've already checked the owner's manual and Toyota repair manual, can't figure out what they are. One goes to a device on the firewall (also don't now what that is), looks like it was previously attached under a bolt that was sheered off (?). And there is a disconnected ground (?) coming out of the firewall in the same area. Everything works fine on the rig, don't want to fix what's not broke, but would definitely like to know. Thanks in advance for helping out a newbie!