I know, I know...swapping cross series is a big electrical no-no here, but whatever...

S4 N/A -----> S5 TII
using S5 TII ECU and engine harness, but trying to use S4 interior wiring (doh!)...

...I need a wiring diagram of an S5 TII ECU interior plug pin-out so I can splice the wires onto my S4 N/A interior harness...I'm am also illiterate when it comes to wiring diagrams, so please bear with me...

...so far, I've color matched as much of the wires as I could. I don't know how wise this was, but I have about 6-8 wires left from the S5 TII ECU interior plug, and about 9 left on the S4 interior harness...

...I've searched, but haven't found anything too helpful...

...I'll try to post up pics when I can..

...uh, please keep bitch outs to a minimum...thanks...

 

im transfering 90n/a to 88 n/a. but im doing all the wireing interior,dash,motor,and body wiring in one shbang

 

teamfc3s.org has a whole bunch of diagrams and a factory serivce manuals too thats where i looked and we converted a s5 car to s4 electronics with a s5 jspec in it lol

all i can say is have fun!!