interior harness question

[colombacho]

I am trying to revive an 89 ix with electrical problems.
the PO burned the locking mechanism and in the attempt to fix it he started hacking up the harness, uhmm, everywhere. the bastard then ended up getting locked up inside.

i have since replaced the engine harness and fuse box, my question is what harness is needed for this model?
can another e30 harness be used? say vert or regular I?
aside from the tranny computer do the computers differ?

thanks in advance.
Brian

[nando]

there are definitely some differences but knowing them all would be tricky. specifically, the ABS system, clutch switches, engine harness. I don't know what else. if you've got time, you could pull the original harness out and compare it with your donor harness (I'd use one from a later 325i if you can't find an ix). I did pull a full harness out of my parts car but lots of it was damaged by the PO, I got it mostly for parts and spare wire.