This is the Harmon Kardon amplifer for use with the NTG2.5 COMAND system in the A, B, CLC, SL, SLK. If you are retrofitting Hard Disk COMAND to a car with HK sound system you need to change to this amplifier and use the appropriate retrofit harness. Please contact us if you need the part for the ML/GL/R class or other vehicles. Note on certain cars you will also need a Sub amp for the Subwoofer. MB UK RRP |