I have a new and unused Sirius adapter for your XM equipped Hummer.



$45 + Shipping. I take Paypal.
http://www.crutchfield.com/ISEO-rgbt...S-SIR-GM1.html

 

Do you know if my wife H2 has xm in it now from the factory and I put this unit in will it replace the xm signal. Also would you know if I can just use the factory xm antenna and not use the aftermarket antenna your kit comes with?
I want to convert to Sirus only due to I have 3 other radios with them and I can add her Hummer for cheep rather than pay XM for one radio. They do not offer a discount even now with them and Sirus merged.

Thank You

 

My Hummer has XM so you could assume that your wifes does too, but go out to the driveway and push the tuner button a couple times to verify. What I know about this kit is that you install it per the instructions and activate it through Sirius and you can control it through your factory radio controls. I have read on here that some guys have used the XM antenna for their Sirius with no issues but I can make no guarantees.