harmon kardon

Hi all, Very recently I have been having some very loud distortion noises through speakers(and occasionally going silent while track is still playing on Command) more so when car is cold. I am thinking it could be the HK logic 7 amp on its way out because headunit works as normal and can see...

Good morning all. I hope someone can help. I've been having a GPS issue on my W204 Harman Kardon/command sat nav. Reading through all the previous post's (driving in 20 -50 miles from where I actually am and also picking up 10 sats but no location)and having a scan of fault codes(gps cable gnd...

Bought a C207 over the weekend after browsing the classifieds for months to get the right options, one of which was the HK audio. Having never heard the audio system before I couldn't wait to give it a try once I got home, too many other things to test first like the acceleration of the 3L V6...