This Mercedes C Class AUX jack adapter lead provide a 3.5mm jack input and connects via the Quadlock connector at the rear of compatible Mercedes factory fitted car stereos. (Radio must have CD/Aux button， see compatibility information below) This Mercedes C Class aux jack adapter can connect the audio from external devices such as MP3 players and mobile phones to compatible Mercedes car radio head-units. Features:Mercedes AUX lead connects via Mercedes Quadlock connector at rear of compatible radios. Please verify that your Mercedes radio has the Quadlock connector and CD/Aux button before ordering.Feeds the audio from devices such as MP3 players and mobile phones into your Mercedes head-unit as an auxiliary input.Gold plated connections for superior sound quality.Provides a far superior sound quality compared to cheap FM modulators.Mercedes aux lead is approx 39 inches (100cm) in length.Very easy 'plug n play' installation This Mercedes aux jack input adapter is compatible with the following:Mercedes C Class 2004 onwards with Audio 20 / 30 Aux enabled radio with Quadlock connector and CD/Aux button.plus other Mercedes models with Audio 20 / 30 Aux enabled radio with Quadlock connector and CD/Aux button.plus other Mercedes models with basic Comand Aux enabled radio with Quadlock connector and CD/Aux button. Please note: The compatibility information provided for this Mercedes aux jack lead is provided as a guide only. Please ensure that the make， model and year of your vehicle matches the above and that your car has the suitable connector to take the plug pictured above. There is more than one aux adapter for Mercedes vehicles， please view all of the available options. Package Included:1 x 3.5mm Car Aux Cable Audio Adapter