Originally Posted by zshopa
where does the remote wire come from, i noticed on the wiring diagram that there is no remote wire at the amp there. does the PnP harness have some switch there? or am i running a remote wire from somewhere else?
With the Logic 7 and Harman/Kardon systems, you can use signal sensing on the signal out of the BMW amp, and so our kits and Technic's harnesses use a signal-sensing device in there to handle turn-on.
If you have an M3 with Enhanced Premium, signal-sense don't work, and you will need to run a wire under the rear seat right-side bolster (we provide pics and instructions for connecting to it and have posted this in a thread in the M3 section).