I am installing a smartphone receiver for my 2004 S80 Volvo car, anybody know where to find backup control signal from front fuse box or some where in front of car? i know i can find it in truck fuse box, but i don't want to run a wire from trunk, i am looking for closest connect point in front.
also for volv s80 car, where is ground connection in trunk fuse box? seems i cannot find it. also i need to find constant 12 v supply in trunk fuse box, anybody know. many thanks.