i need help with my stereo i pulled out a stereo that the truck came with and i put in an aftermarket stereo and it worked for a a couple seconds and now it wont turn on and ive tried the old stereo too and a diffrent stereo ive checked the fuse on the stereo and its good and so it the fuse fir the stereo on the truck can someone help??

 

Check your relay box, you shorted something somewhere or didn't ground properly. Did you unplug the battery before doing any of this?