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  1. #1
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    High Pitched Squeal in Speakers

    Hi Guys,

    Wondering if anyone has any previous experience with this high pitched squeal when I'm listening to the radio. It sounds like that ultrasonic sound you get occasionally when you turn on a radio or monitor?

    My service department doesn't seem to know what this is.


    Thanks!!

    PS I have a 2006 650i Coupe



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    Sorry, not heard of that issue ever - not even in

    the more common e60 models. Have to ask some questions. In all audio sources? At any/all volume levels? Engine running or not? At all times or intermittent?
    _______
    US '05 645 Coupe, Silver Grey, Chateau, Sport, Logic 7, HUD, Cold Pkg, SIRIUS Sat Radio, Aux, BT w/ snap-in adapter, V1, CIP 21.03 w/MP3 enabled

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    Re: High Pitched Squeal in Speakers

    Have a look at this new post I copied about new software

    SI B 61 14 03
    General Electrical Systems April 2007
    Technical Service

    This Service Information bulletin supersedes S.I. B61 14 03 dated March 2007.

    (New) designates changes to this revision

    SUBJECT
    Software Errors Corrected with Progman

    MODEL
    E60, E61 (5 Series)

    E63, E64 (6 Series)

    Vehicles produced up to March 30, 2007

    SITUATION
    Customer may complain of the following:

    (New) The following software errors were corrected with the release of Progman 25.01.00 (Target data Status E060-07-03-520). Only software corrections for the last 2 Progman versions are listed below.

    1) CCC (Car Communication Computer) equipped vehicle, the SDARS (Satellite Radio) stored station list is intermittently empty since programming with Progman V25.00.00.

    2) Poor RTTI (Real Time Traffic Information) reception. The CID (Central Information Display) is constantly displaying "Transferring Messages" since programming with Progman V25.00.00.

    The following software errors were corrected with the release of Progman 25.00.00 (Target data Status E060-07-03-510).

    1) Engine pinging and cold idle fluctuation complaints. A jolt may be felt under braking. Only N62TU.

    2) CCC: The programmable diamond MFL button does not work when set to "Next entertainment source" when vehicle is in motion.

    3) CCC: The customer occasionally has poor radio reception after the vehicle was programmed with Progman V23.x or V24.x.

    4) The speedometer and tachometer needles shake when the vehicle is idling.

    5) CCC: Slow response to inputs made when using controller after startup.

    6) CCC: A high frequency whistling noise intermittently can been heard in radio mode

    7) CCC: Navigation system pop-up arrow display missing. Refer to SI B84 61 06.

    8) CCC: CD/CDC track advances after key cycled. Refer to SI B65 32 05.

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