Hello all. I recently purchased a 2005 Lexus ES330 and must say it is absolutely, without a doubt, the most outstanding vehicle I have ever owned. The vehicle come with in-dash 6 disk changer and NO navigation. The AM radio button reads AM/SAT. When I double push the button, no SAT receiver is installed. I have been searching the web and found this unit at vaistech.com:

SoundLinQ2 (Model SL2xD2) - XM Satellite Radio Interface Kit with Tuner

Just wanting to know if anyone has installed this particular item and if so, how difficult is it and do the steering wheel controls still work after installation.

Thanks for your assistance,
Eric