We are Rocco's Auto Tech in Southern California. We have been specializing in Mercedes Benz Upfitting for about three decades. We have a customer with a 2012 LR4 that would like sirius radio intergrated, anyone have any info on upfits, local dealer here is not up on retrofits. We can make the harness MOST ring and antenna, just need info about programming radio. We'll take some time now to get familar with your forum. Thanks in advance.

Joe Eyerman "Owner" Rocco's