Just installed a new Kenwood Excelon radio in my SV last night. For anybody wanting to do this in the future, the Spiral audio wiring harness works great and has all the pins needed for the SWC's. All I had to do was splice the new radio harness to this Spiral harness. All the steering wheel control buttons worked the first time with no programming required. Also I bought the USB retention harness and the antenna wiring, it all worked. Only thing I see changed the the harness that has the backup camera wires, its now a 40 pin and not the previous 32 pin. I am in touch with Spiral to see if they have a fix for this. The backup camera is the only thing not working. I am also trying to find the VSS wire for hookup (not sure if it has changed on the 19's), but don't have any wiring prints. If someone could assist on this that would be great! Below is the link for the SWC harness.