I just bought a 2007 [new body style] crew cab Z71 4x4 LTZ package.

I looked at several and drove a few and one thing they all had in common was they had XM installed with the nav / radio unit. My dealer finally found the color I wanted [greystone metallic] so I bought it last night. Now I'm not sure if this one has XM or not. There is no XM option on the nav/radio unit but I have the little shark like fin antenna on the roof - isn't that the XM antenna?

If XM is not installed, which I'm pretty sure it isn't, how easy is it to add this and remain factory in apearance? IS there just a plug in tunerrr or receiver that goes behind the dash and would the nav / radio unit need to be reprogrammed?

 

The shark fin antenna is Onstar and if you do have XM it also includes that element as well.

If you do not have XM it is easy to intall the factory kit which GM part # 17801150

http://www.gmaccessorieszone.com/index.php?id=133&tx_gmshopb2b_pi1[year]=2007&tx_gmshopb2b_pi1[division_name]=Chevrolet&tx_gmshopb2b_pi1[vehicle_name]=Silverado%20%28New%20Body%20Style%29&tx_gmsho pb2b_pi1[upcfna_key]=80NSJ024&tx_gmshopb2b_pi1[mmd_code]=CK31403

 

thanks ZX - i cna probably install that myself but how do you get it to appear on the nav unit / radio?

 

[&:] I just had the same scenario. Were you able to install xm and keep factory appearance using the touch screen to control xm?

 

when you plug it in, you will see a new tab for XM, You may have to have it programed though to be able to play. Mine said it was locked.