I want to install a subwoofer box (2 12s) in the trunk of my w211. It has the Harmon Kardon sound system. Activereports 7 serial keygen key. I have been digging to see if anyone has done it and all im finding is people saying that with the HK system there is already wiring for the sub located on the rear deck and that it is a relatively easy install. But i have found no one who has actually done it and shown how to wire it to the stock headunit (i have a 09 w the updated command system) If anyone has done or knows someone who has/ is familiar with w211 audio systems any help would be much appreciated!

Mercedes C Class Speaker / Sub Installation. Turn to our extensive selection for the right wiring kit that comes with a large battery cable to transfer current to the amplifier, power-on wire for the stereo head unit, ground wire, and RCA adapters to run your new speakers. If you need to install a pair of high-tech subwoofers. Mercedes C180 kompressor,CLK V6,Fiesta ST,Rs Escort,IS200 Sport,Renault Clio V5. I changed all my speakers in my w203 saloon to the vibe slick series, the tweeters.