I installed a new Radio in car and ever since my head lights/tail lights do not work when the Headlight switch is in the on position. If I have the switch in the parking light posotion I have parking lights and tail lights. If I pull back the brights/dim switch I have headlights too! I have checked the relays behind the fuses to make sure I didn't knock anything loose, it all looks ok. Is there a relay for the headlights somewhere else. I'm no expert but I find it unlikely that any wiring I did with the radio itself caused this problem but I'm not sure. Ant suggestions on how to fix this or idea's would be very appreciated.