2002 4.6 radio fading in and out!
 

Our family hotrod has radio problems it is fading in and out my wife keeps calling me and telling me that it like the signal strength is weak and then its not? It only has 34000 miles and the CPO does not cover the radio what a joke.:banghead: Can anyone help? Thank you

:xoutpost:

isnt it speed sensitive volume?

This sounds like Service Measure B65 209 04 (FM mode switching from Stereo to Mono/fading in and out)

Is that normal? stereo / mono ? I have never had a problem before. can I change a setting to resolve it?

There was a technical service bulletin for fading FM stereo reception on cars with navigation with the BM53 tuner. The fix is to replace the BM53 tuner in the trunk. Reference service bulletin #B65-209-04 with your dealer.

HERE...

This Service Measure supersedes S.M. B65 209 04

Changes to this revision are identified

Subject

E39, E46, E53 with BM53 Radio, Navigation system and DSP or Harman/Kardon amplifier: Radio is switching from
Stereo to Mono.

Complaint

In FM mode only the radio sound is switching from Stereo to Mono, fading in and out.

Cause

Software error in the BM53 Radio.

Measure

On a customer complaint basis only, replace the BM53 radio.

Install a BM53 radio with the new software, P/N 65 12 4 135 562.

Mine seems to be having this issue (almost sounds like a speaker is dropping out, but I never thought of it as possibly changing to mono mode). I don't recall noticing the issue when it's playing a CD, for example.

Would this service bulletin still apply? Would this be repaired for free or because it's no longer under warranty would I have to pay for it?

Thanks in advance for any advice.

Anyone know?