Rhys81

Hi guys. This has probably been asked before but I’ve just managed to pick the wife up a bargain a3 s line on a 10 plate and had a pioneer da120 already in the garage. I’ve bought the harness etc and it all works absolutely bob on but for some reason it won’t power off when the ignition is turned off. Am I missing something? I’ve run the stereo power cable to the drivers side fuse box and used a fuse with breakout cable. I’ve used what I assumed would be switchable fuses like the dash lights but this just stops the dash lights and the car won’t start. I think it’s probably something simple but I can’t think of what. Any help would be awesome thanks.