i hooked the presout to a small amp and now my door speakers are fine, but when i hook up the amp that powers my sub it make the music stop playing. the deck doesnt turn off it keeps playing but no sound. then if i remove the rca i have sound again. thinking theres a short somewhere. also me remote wire for the sub amp doesnt work. i ran a wire to my second battery pos then to the sub amp and places a toggle switch inline. learn from my mistake NEVER but a head unit of craigslist.