Mercedes Benz (->2008) interface "Turn - On" OEM amplifier (ACV, MOST-RCA).

Mercedes Benz (->2008) adapter "Turn-On", OEM amplifier will be retained (MOST-RCA).
ACV 13-1190-51

Active system adapters Mercedes maintain the function of the original Soundsystem. 
They enable the installation of standard aftermarket radios to the active speakers.

Optical fibre analog converter for Mercedes vehicles * equipped with Command APS NTG1**, NTG2, NTG2.5 
Vehicles equipped with MOST25 (optical fibre) active sound system.
With this adapter you are able to install an aftermarket head unit with RCA preamplifier outputs.
The OEM MOST25 (fibre optic) amplifier will be retained.

Mercedes Benz CL-class, C215 (2004-2006),
Mercedes Benz SL-class, R230 (2005-2008) *,
Mercedes Benz CLS, C219 (2005-2008),
Mercedes Benz S-class, W220 (2004-2006),
Mercedes Benz SLK, R171 (2005-2008),
Mercedes Benz E-class, W211 (2002-2008).

* Note: 
Fader front/rear not supported.
Not compatible for Mercedes vehicles with D2B optical bus system (Comand2.0 & Comand2.5).
* Not compatible vehicles with Harman-Kardon Logic 7 OEM amplified system.