I moved the mute wire... the bypass actually works, the steering wheel controls don't though. Before I attempted the bypass I would get a a warning message that my parking brake lead was improperly connected everytime the unit powered on. Now that I grounded that wire I no longer get the error message, but the volume and mute (Attention) controls on the SW do not work. I can still seek stations on the radio, but not songs on the iPod and haven't tried with a CD. I think that that wire nut was ground, it was 2 black wires, one i believe coming from the unit, and one coming from the SW contr