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  1. supersteve9

    supersteve9 New Member

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    Got a new headunit for my audi s3 it still had original Audi headunit in but i Am getting a whining from a rear speaker but its fine with original headunit, i can stop the whining but only get front speakers working. i have the correct audi adapter cable.
    anyone else heard/come across this problem before?
    been told could be bad earth? or speaker cable?

    help please driving me crazy!!! :(

    tried earth didnt seem to be that!
     
  2. AndyMac

    AndyMac Moderator Staff Member Moderator

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    Best to just rewire the rears directly to the HU. The whining is due to the mickey mouse way Audi wire the RCA's to the HU. The stock pre-out yellow plug is totally unshrouded/screened so will pick up alternator whine. You may be able to improve the whine by earthing the HU chassis direct to the bodywork behind the glovebox. Use a fairly chunky (8 gauge) earth lead as short as possible.
     
  3. supersteve9

    supersteve9 New Member

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    ok thanks for your help mate
     

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