This post was back when I was the Sprinter Guy, but am now the NV Guy.
The Sprinter guy has a solution to add to the factory Audio 15 dash unit, a XM Satellite system in your Sprinter Van!
This XM Satellite came from a local Austin Texas vendor, Custom Sounds. For availability and info about it please contact Matt at 512-454-3572
Added right in the factory in dash audio screen, now you can have your XM Satellite radio just like it would have come from Mercedes-Benz.
If you order your new 2018 Sprinter van from Dave the Sprinter Guy, I will include this all new feature at no additional cost to you. Delivery must be here in Austin Texas to get this unit installed.
Special offer good on all 2018 Sprinter vans ordered through September 30th 2017.
For more info call Dave @ 512-942-6923 or email firstname.lastname@example.org