1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

heated rear screen interferes with radio

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by tedster, Nov 11, 2009.

  1. tedster
    Offline

    tedster New Member

    Joined:
    Oct 29, 2009
    Messages:
    15
    Likes Received:
    0
    As the title suggests putting the heated rear screen on my 2005 a4 avant b7 makes the radio reception unlistenable. Ive done a bit of research but cant find a definate answer to the problem. Im trying to find the amplifier unit for the aerial, but all i can find in the rear right boot panel is a karmon amplifier part number 8e9 035 223. Any help would be much appreciated.
    [​IMG]
    #1
  2. PetrolDave
    Offline

    PetrolDave Active Member

    Joined:
    Nov 25, 2003
    Messages:
    1,559
    Likes Received:
    82
    This is a common failure on the B6 & B7 - there's a filter inline between the screen element and the amplifier, when that filter fails you get interference when you turn the heated rear window on.

    Swap that first, not the amplifier.
    #2
  3. tedster
    Offline

    tedster New Member

    Joined:
    Oct 29, 2009
    Messages:
    15
    Likes Received:
    0
    where is this filter located?
    #3
  4. PetrolDave
    Offline

    PetrolDave Active Member

    Joined:
    Nov 25, 2003
    Messages:
    1,559
    Likes Received:
    82
    Not 100% sure, but I think it might be in the taligate of the Avant?

    Can anyone confirm or correct that?
    #4

Share This Page