A password will be e-mailed to you.

Did you buy a GM car but it comes with XM – and you have Sirius? This system lets you convert the equiptment so you can get your coveted Sirius programming!

Word on the street is that this works in ALL GM cars

This is the manual installing the SIR-GM1 tuner, although in the case of some people they may want a professional installation.

Written by Cecilia