if you find that your deck has no remote output then run a wire to the fuse box off the radio fuse so its only on when the radio or cd player is on...test each side and tie it on to the leg that isnt hot all the time yah if you have a test light check the output with the head unit off then turn it on while still testing it and if it shows power or 12v then it should be good and then the problem is in the amp.....or the remote wire could be good but you pinched it along the way while running it and its shorting to ground...its possible test it at the head unit and the amp
later
jason