Radio control panel, component description With code (510) Audio 20 with CD changer - GF82.60-P-3116RCA/GF82.60-P-3116RC

MODEL 171 with CODE (510) Audio 20 with CD changer 

MODEL 171 with code (523) MB Audio 20 radio 

Location The radio is located in the center console.

Fig 1: Identifying Audio 20 With CD Changer Radio

Courtesy of MERCEDES-BENZ USA

Fig 2: Identifying Audio 20 With CD Changer Radio Functions

Courtesy of MERCEDES-BENZ USA