2nd Gen Non-Engine/Transmission radio woes

[AWeik]

i just tried to install a sony head unit into my truck, i bought a sony/dodge harness and tried to splice it together. after about ten minutes of multiple trys with different combos of dimmer,12v power, illumination... ect. the speaker wires are connectect properly but im not sure about the others... i only burnt on 10A fuse and replaced it. fed up i installed the stock radio correctly and now it doesnt turn on. the truck also flashed P ECU -------- P DONE... what the hell just happened? how do i fix it? thanks,,, I NEED MY TUNES!