Originally Posted by Shmee
The 12V signal can come from any fused and switched 12V ignition source. The power for the amp or CD player for instance. its's purpose is to power the replay in order to allow it to switch from one pole to another.
sorry, was on a long vacation! Thank you for the explanation, but where is the 12v source on the CD player/Amp? Which wire is it? I have searched through the web and am still clueless. I guess this is something very obvious, but I still can't get it
The only picture I've found shows only the ACC, but AFAIK this means I can only use the circuit when the engine is on. Cannot find the BAT/B+ anywhere