ok i have a 2003 cts production date 11/29/02. it has the black dash not the pewter color one. it came with the regular radio non bose and no xm. will i be able to get my sirius satellite to work thru my radio? if i get my radio tech 2. and install the cts cable harness from radios and more. and install the sir-gm1? i know there is alot of threads with this topic but reading thru them it seems that some say yes you can and some say no. i just hope my description of my car will give me a yes i can or no it won't work. thanks for all the help.