I bought one of the setups on ebay and it came with the wiring adapter for the RSN-E, which I think is pretty similar, but I also think will require some tweaking (something maybe about K-lines and power leads). Can anybody get me sorted on this? There are tons of write-ups for the RSN-E, but I have yet to find something helpful for the Symphony II+ (Concert III, right?). If it makes a difference, I also have Sirius installed.

I am no wiring expert (obviously), but I could follow some good directions.

Also, anybody able to provide VAGCOM assistance in central PA (Harrisburg area)?

TIA!