1998 cadillac devillle

hey guys where exactly is the interface wire located i dnt see it ant where and sorry for the mix up didnt kno the exact year b4

What Interface wire... What are you doing? A Bit more info is needed...M.E.C.P & First-Class

Go slow and drink lots of water...Procrastinators' Unite...Tomorrow!

sorry the steering wheel controls for after market radio i checked for the dark blue or lt green wire at the Pontiac 40 pin connector by the steering column but didnt see it. thats the directions from the swi-rc application guide

if you have a cadillac then why are you talking about a pontiac 40 pin connector? also you have to be really careful with following the directions for those PAC steering wheel interfaces. i did a nissan versa a while back and the colors they gave in the instructions were correct but the pin locations they gave me were wrong so it took me a while with a meter to figure out what went were. try to go on PAC's website and download the specific instructions for that car just to crossreference what they are telling you to do.

it says its the same harness at the steering column but thanks for the info ima go see what i can do i appreciate it will come back if i need any more help