Originally Posted by mwoodengr
Better call Sirius. I am pretty sure that you can not have one Sirius and one XM reciever on the same account. Need two accounts (one Sirius, one XM) for not. XM music channels all switch to the Sirius "equivilant". I know that you can buy Univeral recievers and adapter to retro an Sirius equiped car with XM and vise versa (did this with my current Chrysler to get XM). Its a pretty simiple plug and play with the radio, but you will have to install a new antenna.
I looked up tht box there is none listed for the camaro yet but I'm sure that one thats out there will work. That said you may as well just get an XM subscription than buy taht box, the price difference will be the same as the cost to get the box. And you won't have to run a new antenna.