Can anyone suggest a signal wire to run a relay? Passat, 1993, diesel.
Key on-on, key off-off (with key in ignition switch).
Colours?
Thanks.
What are you trying to switch? Are you trying to access an existing wire, or add anew one?
If your radio turns on/off with the key, that fuse could be tapped for the feed.
Or you could tie into the output side of the X relay.