I bought an aftermarket cd player as well as the install kit and wiring harness. Followed basic directions to remove factory. Then followed instructions onwiring harness install and then mounting kit. I did unhook the positive terminal from battery and made sure there was no juice to the car before beginning. After everything was finished I go to try it, and have no power or even a crank to the engine. The dash lights and even door ajar dinger are working fine. I double checked my wire connections, looked for any blown fuses (Had None), and even tried to give the battery a jump. Had no luck. Undid everything and still the same. Please help me, I must be missing something.