Originally Posted by Schouten

This is a good headunit, but you need to be aware of a couple of items. If you're going to connect to the speakers thru the Infinity (factory) power amp, 4 volt or better signal levels are required. The unit you're looking at is only 2 volt signal levels. You will need a line driver for this. If you can find a headunit with 4 or 5 volt signal levels, it would be better. One more thing, to use the subwoofer controls on your new hear unit, you need to disconnect the spliced wires underneath your carpet. The Infinity unit uses only the front speaker wires and splices wires for the subwoofer input on your power amp. Disconnect the splice and install RCA plugs on the subwoofer wires and the front speaker wires. Connect your 4 or 5 volt preamp plugs (RCA plugs) to these plugs. There's detailed information on this forum for this wiring.

Good Luck.