rsjust2nice

If anybody has used or knows someone who has used the maestro rr, do you know if i will be ably to retain the factory xm so i dont have to add a new module? Im gutting the non nav rockford system, starting with a kenwood ddx5902. It says its compatible on there website but its pretty vague on the xm part. Or Would i just be paying more money to keep my steering wheel controls and adding gauges onto the screen. Thanks for any info anybody has