Help Sirius Sirgm 1

[DJ3PM]

Hi,
I install Sirus SIRGM 1 on Chevrolet Uplander 2005 with oem radio (am,fm,single cd, mp3) and BAND button ,cd aux and I don`t have acces to xm 1 and xm 2, I have only acces to am,fm1,fm2 when I push BAND button. I don`t know why. I need your help. :bigthumbup:

 

[My name is Matt]

I can help you with this. I need to know if your car had XM inside it in the first place. If so, did you remove the XM unit prior to installation and put the GM1 in it's place?