I'm trying to install a kenwood single din radio in my rover. The factory wiring harness' have been cut already. I have the power wire from the radio going to the orange/green wire coming out of the rover. I couldn't find the ignition wire so i tried to hook it up to the cigar lighter. ATM it will let me put in a CD and it will return the CD but i have no dispaly.. any advice would be appreciated. I'm in way over my head with it :/