Hi,

Just installed an aftermarket navigation system into my boxster. Tested the system, seems like everything was good. Car engine turned on, navigation turned on. so next was to test the rear view camera I got for the car. I noticed that the previous owner had a wire that was tapped into the wire used to power the radio, so I decided to plug the rear view camera's positive wire to the wire that powers the radio and then black wire to the ground wire. At any rate, when I plugged the camera in, my navigation quickly shut off and now my car won't start at all. did I blow a fuse or is this something much more serious just happened?