I am trying to install a aftermarket radio in my 02 chevy cavalier and I have done what the instructions have said and it wont power on. I have tried many different ways of getting it to work but the only way i have found that it will turn on is when i turn on my headlights. I don't know why its so complicated to install this radio. I got all the speaker wires hooked up correctly, the ground is hooked up to the ground, the battery(yellow) to the battery on the wire harness but it still wont power on. I have these wires not connected to anything, the red(accesary), the red on the harness(ignition switch), the orange(illumination) and the orange/white(dimmer) the question i want to ask is how do i get it to work? please help me!