My buddy has a Nissan Xterra with a 4 channel amp for his speakers which work good and then a little 2 channel amp to run his sub, i just tried to replace the little 2 channel amp with a bigger Lightning audio i had and it wouldnt turn on, so what im asking is that its possible the deck had enough power to turn on the 4channel and 2 channel amp but not the 4 channel and Lightning audio amp?
