View Full Version : XM in 99 SLS

10-13-08, 06:26 PM
I remember seeing a post about 7 months ago of an XM installation in a 98/99 STS or SLS where the guy used an XM Terck commander and installed the remote unit in the space under the heater controls. Does anyone have a bookmark to this?

I want to install a Terx commander in mine and cannot figure out how to cut into the wiring for the CD changer.

10-13-08, 10:22 PM
cannot be done
you need an 02+ unit at least