this is easy to figure out. take a working amp and hook it to your system. if it turns on, its your old amp, if it doesnt turn on, start with a volt meter and check for power. not oh its connected power, actual power. if you have power, take your headunit to wherever you bought it and say it doesnt work. if it has no warranty, buy a new head unit and hook it up. also check your RCA cables. you may have tosted em without even knowing it.
CHECK WITH KNOW WORKING PARTS. AND DONT FORGET, IF ITS A NEW AMP, YOU HAVE TO ADJUST THE DIALS ON THE SIDE FOR IT TO MAKE ANY SOUND.
06 Ranger XLT
5.5 Mid travel w/ 2.0 Fox Resi, Deaver F31 w/ 2.0's
8.8, 4.56's w/ Lock Right and 33's
McNeil Fenders and Bedsides