hadam

Today I finish installing the Mikbox in my 2001 E-430.

I am having very bad humming noise coming during phone calls.

I check all the wiring and all looks good.

I never had this kind of humming noise in my other W210 that have MB phone.

I am using V551 GSM Cingular phone with Mikbox.

I belive it is ground loop problem. I need to go and get ground loop isolator from Radio Shack ($15) to solve all my humming problems.

I don't know where to put ground loop isolator. Is any one know where should I put ground loop isolator to get rid of this humming noise.

Does any one else notice the same problem??

Please help

I have also sent an e-mail to Mik. He should be able to give me answer on humming noise. It is really bad noise. It is not worth to spend all this $$ and get poor sound quality with humming noises.

shorthair

The exact same problem was discussed here a short time ago:
https://mbworld.org/forums/audio-electronics/125068-mikbox-getting-feedback-loop-low-humming-noises.html

hadam

Mik, look like it is known problem.

Do you got any solution for it?? Do you look into grounding issue??

Any help will be appreciated.