I retrofitted the Sirius receiver into my 06 E-class by purchasing the needed parts from a recycler. I think I paid $150 for the whole set-up, you'll need the receiver box, antenna, bracket to hold the receiver, a couple of fiber optic lines and a small power harness. You also need access to a SDS machine to inform the Command system that a sirius receiver is now in the fiber optic loop.

On a scale of 1-10 its about "2" job. There are certainly more inexpensive ways to have access to SAT radio but it's hard to beat the convenience of having the integrated command system.

Sirius is addictive, since I got my system working I think I've listened to about 3 minutes of conventional radio. If I were an AM/FM broadcast station owner I'd be a bit worried about my future markets.

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