I followed the red yellow wire today after installing my new DS battery tray
it goes to the 6 way connector thru the firewall towards the fuse panel, I pulled the kick plate only to find the connector goes NOWHERE, it dead ends
so this is an unused 12ga or 10 ga wire mated with a 12v constant wire, within 2 feet of the alternator
I saw another thread about the European 80s specifically a UK 80 that has a power box with a hot, switched hot, and ground lead on it, that was not in the US 80 series, a dealer here said he has tons of these boxes, I thought it would mate to that blue plug, but no luck it has 3-4 wires,,, so I dont know if my 88 62 has a connector for that stock power box, but the dealer/supporter says he can cut the harness and sell both sides of the connector with the power box
I am trying to figure out how to use this vs buying a power distribution box from a mini van I have seen here (cannot remember what donor car it came from) to install, I want to say it was a mercury or lincoln
but either way I go it is good to know the blue plug on the DS side near the head light on an 88 fj 62,,,,,, the white wire goes to alternator/battery the red with yellow goes to a plug (that is not used) near the fuse panel