ok what headunit is it !!!!

theres a AF setting on the headunit that needs to be checked first, will be on face of the stereo, basicly turns on the remote wire to live


also what amp have ya got , need to know that just incase its in protetion mode too

easyest way to sest is to take the amp and sub out the car and go indoors and with the house stereo to the amp input ( assuming ya have seperates, if not then buy some )

wire the remote and the live to the car bat ( ya need that in the hosue too) and the ground to the negative, if it works then ya know there fine and checj ya headunit settings

oh and if its a sony heaunit makesure ya aint wired the amps RCA output to the BUS input for the cd player

usually its either the bus if a sony on the AF button though