I recently bought a 5 channel amp, a sub, and 4 component speakers for my new 2008 Honda. Today, just now actually, i was trying to start laying some wires down before i actually hooked everything up. I took the dash apart, and pulled out my radio unit, and i saw that there are no RCA cable plugs on the back of the unit? Do i need an adapter or are these plugs somewhere else? Any help would be great. Thanks