Axxess ASWC 1 (ASWC1) Universal Steering Wheel Control ...
Used with the Pioneer DEH X4600BT. Rather than cut the stock wiring harness, I just fashioned three pins to plug in and secure in place. As expected, it just worked when I powered everything up for the first time, including the "trip computer".
pioneer diagram wiring deh x4600bt Gallery
nissan 280zx wiring diagram - 28 images