[Viet Nam Vette]

Originally Posted by f5fstop

Talking stock DVD? If all wiring is present, including XM antenna wire from external XM antenna, wiring connectors for the new XM box (might be just hanging there), not a hard job. Remove DVD and remove glove box to install XM box and do all connections. If wiring is not present, he may have to install a new antenna (doubt it), and splice into some wires for power/ground/serial data, etc. However, I would be all the wiring is there, but can't be sure.
After install, a simple setup with the Tech 2 is probably required to allow the BCM to recognize the new component on the serial data link.

Yeah..stock DVD GM NAV unit.

Thanks...