Hey everyone. I am new to this forum, so please excuse me if I am posting in the wrong section. I would like to add an aux input to my H3 Alpha. I was going to wire a 3.5mm stereo TRS jack through the XM radio harness but without the pinout I am unable to figure out exactly what wires I need to splice into. I will use a switching jack in series with the XM source so that I will still have XM but when I plug into the jack it will switch over to the 3.5mm source (ipod, mp3 player, or whatever). If anyone has a wiring schematic or knows the pinout, I would really appreciate if you could share it with me. Thanks.