Call Sirius, they can walk you through the steps. The SID # comes on when you turn on the radio to CH1. If you bought it from a dealer, they might have a free trial for 3 months. (like my dealer had)Jeffro wrote:I have a 2005 G35 Sedan that is satillite radio ready. I can already receive a few stations, but I want to subscibe to Sirius to receive all the programing. Has anyone done this online by themselves, and if so, where can I find the SID number for the receiver?