I have an 05 EC/SB that was originally a non-Bose, 3rd seat option truck. I have a Denali center console with Lux amp and a Lux TNR on the way. Are there one or two different harnesses that come from the head unit back to the Can/data bus connection of the console harness? Does anyone have the part numbers? Thanks.

not only will you need the harness you will have to reprogram the HU for LUX amp and such.