mx6bfast wrote:Could one replace the XM radio with a Sirius radio?
You most certainly can! Parts will tell you that they don't have a Sirius receiver for the Rogue, but that's because Nissan is no longer contracted with Sirius (I told them I needed it for an 06 Altima).
The part number is 999U9-AS006. You can use the existing mounting hardware and even the antenna. You'll need to shave off the little tab on the receiver input to slide it on - that's the only physical difference between the two units. After having it working for about a month, I'll even go so far as to say that the reception is better with the stock XM antenna than with the windshield mounted sigma Sirius antenna (I have that on my other vehicle).