E30 BMW's anyone?, Looking to buy a new project DD Options

[Bitter]

x2 on the electrical side. i just helped a friend of mine with his rhd bmw 320i (i think.. it's a 2.0L inline 6 anyway). his left rear brake light, interior light, and some other interior lights had died. but for some reason, after replacing a burned fuse in the engine bay, everything started working again as if all the lights were hooked up to the same fuse when it shouldn't since the other lights had their own separate fuses. his car is a 94 though so i'm not sure if this applies for the older gens too.

That sounds like it could be a bulb base or bulb socket issue, I've seen the lead contacts on bulb bases smoosh together and short power into other circuits or sockets corrode and bridge power into ground or ground into power and do all kinds of odd things.