Ive got a 94 PSD and the wiring through the entire truck is jacked up, i need a full wiring harnnes or something if they even make them for the truck anymore. They have messed the wires up so bad like for example you turn the lights on with the truck off the radio comes on. Also another thing is if your dash lights are dim the radio cuts off. one more thing is when its hooked up to a trailer if the lights are on and you try to use the blinkers they dont work right. like they will both flash and it will be off key. If anybody knows how i can solve the problems or knows of a good place to get a wiring harness please let me know.