Where to find wiring info?

[orever]

I have a 2004 Accord Sedan EXV6 w/ dual zone climate controls. I've been trying to find a site that has the connector pinout/wiring diagram for the accessory port on the stereo. Currently it has XM plugged into it, but I'm going to remove that to add an ipod adapter. I'm looking for the port diagram so I can hopefully splice my power and ground from that, to avoid grounding problems.

 

Are there any sites for this info posted (or do you know the wiring diagram?)? I've tried searching google, but I haven't turned up anything definative yet.

 

Thanks.