I looking to buy a hummer the guy said it ran great and then he had a friend add a apple carplay radio and a rear camera I guess the camera work for 3 days and then stopped he and a few days after that the hummer won't start now so cld someone plz tell what the problem is either the camera a short,ground,fuse or something else

 

 

Does it crank, no start, or not crank?

Is your battery dead? If so, look for a wiring error with the Apple Car Play stereo installation.

 

Battery Voltage at rest?

Still trying to use the Crappy Azzed OEM Battery Terminal Connectors?