'05 C-Class C320 4matic Harman Kardon Speaker issues!
I have an issue with possibly my speakers or amp (very low volume, no bass). It's Harman Kardon, Logic 7 for '05 Mercedes Benz C320 4matic.
Let me break it down:
I know my speakers work for sure. How do I know this? When I go close to each speakers in my car, I still hear sounds (whatever is playing on the radio, CD) coming out of them. The only speaker a little loud is the top Dash speaker. Every now and then when I drive, and maybe get into road bumps or make a deep turns, all speakers gets loud for about a second.
Obviously something is grounding I guess or some wire(s) loose somewhere. I did get to the back of the Comand system and found everything working right. Before taking the Comand system out, I used CRC electronic spray to clean the volume knob incase that was the issue, but still the same low volume.
I have seen similar questions, with answers easily diverted to suggest it's possibly the speed control options that comes with cars like this. It's not, because, I currently have a BMW 750 Li and I have owned an Audi A8 in the past. I know these cars, cos I only kinda drive V8 German cars. This '05 C-Class is my first V6 owning German vehicles.
I feel like this issue isn't exactly complex that's why am here to seek. Does anyone know how to find that spot where there is possible grounding, loose wire or anything that will help fix this issue?


