deichman

We have a 2006 CLS E55 AMG. It is not equipped with Sirius radio but has the satellite button, which I beleive they all have. My local dealer is quoting $2,100 parts and labor to install the needed hardware for this vehicle. I'm trying to find out if this is a fair price or if there are alternatives. Not interested in aftermarket applications unless it utilizes the factory radio control. I'm new to forums and would appreciate any information anyone can provide. Thanks. Dave