I got a nice pioneer sound system going on. Have a pioneer 4 channel amp for the speakers and a 2 channel for the sub. Ive got every thing all wired except the rca cables. Im so confused, Ive got 1 rca output on the deck but two amps. Do I run a rca cable and have two y connecters two wire the amp or wire one the rca from the deck to the four channel and that to the 2 channel? Or do I got to get a differn't deck?