Hello, I have an 86 firebird 2.8, and I'm having a few issues with the interior wiring, first off the headlights work, but will only pop up if the switch is pressed a specific way, and the dimmer only works at max, any other position and I have no dash lights. Also none of the interior lights work at all, it has the dome light, lights in the front leg space, one in the console, rear hatch and storage compartment, I have checked all bulbs and fuses an all of them are new or I replaced them, but it made no difference. Also the stereo loses all power when the key is off, it loses memory and everything.. Any help at all will be great, if anything needs to be replaced that's not so bad, but if I have to dismantle the car a bit to fix these issues I can do that to.. Thankyou all