YOU ARE PURCHASING A 2005 MERCEDES BENZ R230 SL65 AMG PHONE ANTENNA BOOSTER AMPLIFIER UNIT IN PERFECT WORKING ORDER AND CONDITION MOTOROLA PART # SYN9528A FITMENT: 2003-2008 MERCEDES SL CLASS: SL55 AMG, SL65 AMG, SL500, SL550, SL600 THIS PART NUMBER MAY ALSO FIT OTHER MERCEDES MAKES AND MODELS. PLEASE CHECK WITH YOUR LOCAL STREALER THANK YOU