2006 A6 3.2 Quattro
 

Tried installing Led license plate lights, thought I blew a fuse, started pulling fuses and now the car won't start. Sometimes it will start and then shut back off. The radio won't turn off when removing the key, the dash display doesn't turn on and the doors won't lock or unlock with the remote or with the door button. Tried starting with the vallet key and tha doesn't work either.