Originally Posted by
pizzaguy
And that confirms that my original pin-out I gave the OP was right after all.
Gotta tell ya, I'm considering BOTH a four channel mod AND a new head now.
It took a little time and head scratching.. but being able to set the front/rear balance has made the stock amp-speaker setup a pretty decent system.
And a note to OP.. the pre amp outputs don't carry a stand alone speaker hookup.. Your system (based on what you've written).. You are using an OEM harness adapter to the OEM wiring. This will only utilize the left/right channels of ONE output.. most likely the front channel from the HU. Your diagram from the HU will confirm this. You should have tapped off a set of speaker leads with this. You can run those leads to your tweeters by pulling new wires to the door. Hope this helped somewhat.. LOL.