Joe, You get the gold star! It is located in the left side of the trunk under the paneling in most all Mercedes. It does use a booster because of the Gov. limit to .6watts for the handhelds. They don't want any shrunken brains because we are on our phones so much.
ASE CERTIFIED MASTER AUTO TECHNICIAN
SERVICE MANAGER FOR 14 BAY FACILITY
MERCEDES SPECIALIST 8 YRS
PARTNER IN MERCEDESSHOP.COM