Integrate into the factory amplifier and send the output to a line out converter with summing to install new aftermarket amplifiers.
This harness gives you access to the front tweeters and front woofers. The rear deck speakers and the subwoofer. You will need to sum the front door woofers and the front tweeters to get a full range signal for your amplifiers. This harness plugs into the amplifier and leaves the factory amplifier connected so you can retain the factory volume control.
