[hillstones]

I posted the wiring diagrams on the forum years ago. Can't find them now. All the audio connectors are the same between models except the 6-speed manual has a real crossover for the front speakers mounted on the back of the stereo. If you are upgrading your stereo, you won't be using the Honda crossover anyway with your aftermarket speakers. The 20-pin main audio connector is all you need. The front channel comes out of that connector and goes to the Honda crossover and then separate wiring comes out of that crossover to go to the door speakers and tweeters. All you need is the front channel and rear channel from the main audio connector. Run new wiring to your door speakers and tweeters for your aftermarket speakers. In your other post, you indicated using an LOC from the main audio connector to use an an Aux in to your aftermarket stereo.