XM Radio in an 07' Sequoia w/ Nav. System

[07' Sequoia's]

I have an 07' Limited Sequoia with the Factory Navigation System. I just bought an Ipod adapter for it that plugged right into the back of the head unit and has a plug that the Ipod plugs into, pretty simple and I can control the ipod with the head unit and steering wheel controls. The Nav. Unit has an icon in it for Satelite. I was wondering if there is a system for XM or Sirius that plugs into the head unit and works with the head unit and steering wheel controls also. I don't want the deal where you have to mount another screen / unit on the dash, etc. for the satellite radio. In the last year I got rid of my wife's Chevy Tahoe and bought her a Sequioa and liked it to so much I got rid of my crew cab GMC and bought a Sequoia for myself as well. With two GM's, we both got used to having XM. Is there anything like this for the 07' Sequioa's?