Amazon.com: AMASE AUDIO Car Stereo, Wince 6.0, 2 Din Compatible for Benz E-Class W211/CLS-Class, 7" Touchscreen, in-Dash DVD Player, Support GPS navi/Bluetooth : Electronics
Mercedes Benz W211 E-Class Harman/Kardon Subwoofer Speaker A2118202902 | eBay
03-05 MERCEDES W211 E500 E320 E350 DOOR SPEAKERS HARMAN KARDON LOGIC 7 SET OEM | eBay
harman/kardon® Logic7 not really powerfull - MBWorld.org Forums