Most kicker 2 channels as I assume that is what you are talking about use the terminals that are the farthest from each other. The positive should be closest to the power ground and remote turn on strip and the negative should be the farthest one on the end. If you need more help here is a link to the kicker website they have pdfs on their amps there.
Kicker support Just go to support in the left hand corner, technical support and then manuals. Look for your amp from that list. Good luck and hope this helps.