The problem that everyone is running into with installing aftermarket head units in these cars is very common. It's a simple issue that is created by the cars "CAN-BUS" system. The wiring harness that most people recieve hooks up correct but the head unit wont power on. THIS IS NOT A FUSE!!!! It's the fact that the harness that was provided didnt have a power or acc power lead/wire in it. The cars systems are routed into the factory radio and to completely install an aftermarket HU you MUST have the Chrysler/Dodge/Jeep "CAN-BUS" interface. With out it the car will lose some functions and eventually u WILL FRY SOME SYSTEMS! You dont have to run a lead from the battery or fuse box to run a head unit. Just get the interface so that your car's computer can continue to function. I have links to em if you need em.