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  • My radio signal is rubbish

    I've lost my radio signal all of a sudden...it was fine 2 weeks ago but all of a sudden stopped ...the aerial is pushed in OK at the back of the set .
    Is the aerial powered on these cars

  • #2
    Also have the same issue, it's another job on my to do list.

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    • #3
      Yes the aerial is powered, switched on by the radio. They do go wrong when water gets in. Or sometimes after a thunderstorm.
      You can access the aerial base by removing the rear dome light to measure if it’s getting power. There’s a small spade connector on a white wire?
      I need to change the one in my RS4, I can only get a couple of really strong stations, radio 2 and 4 here at home I think. Pretty sure it was lightning that got that one, we live on a bit of a hill with some real big trees around.

      S2 Coupe 3B Project


      Ur quattro restoration

      S2 Avant

      Boost is the new rock and roll!
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      • #4
        Originally posted by newsh View Post
        Yes the aerial is powered, switched on by the radio. They do go wrong when water gets in. Or sometimes after a thunderstorm.
        You can access the aerial base by removing the rear dome light to measure if it’s getting power. There’s a small spade connector on a white wire?
        I need to change the one in my RS4, I can only get a couple of really strong stations, radio 2 and 4 here at home I think.
        Do you know which wire powers it because I've been messing with my wires to get a ignition feed

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        • #5
          Originally posted by Jamesey View Post

          Do you know which wire powers it because I've been messing with my wires to get a ignition feed

          Does your car still have its ISO connectors?

          A5 goes live when radio is switched on. I *think* it’s a white wire in the car but not sure.


          S2 Coupe 3B Project


          Ur quattro restoration

          S2 Avant

          Boost is the new rock and roll!
          sigpic

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          • #6
            Originally posted by newsh View Post


            Does your car still have its ISO connectors?

            A5 goes live when radio is switched on. I *think* it’s a white wire in the car but not sure.

            Thanks mate .
            Mines only got 4 wires on the live iso plug ...1 permanent live , earth , white wire and a very thin brown

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            • #7
              out of that lot you'll have blue/white for speed signal, blue/red for 12v, grey/blue for illumination, white for antenna, brown for earth
              Mike

              http://www.s2-audi.co.uk

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              • #8
                Originally posted by Mikes2 View Post
                out of that lot you'll have blue/white for speed signal, blue/red for 12v, grey/blue for illumination, white for antenna, brown for earth
                I'll get some shots later , definitely no ignition feed.

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                • #9
                  You'll want antenna, funnily enough.

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                  • #10
                    Audi have never had an ignition feed to the radio on these cars. It's battery 12v only via fuse 4.
                    Mike

                    http://www.s2-audi.co.uk

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                    • #11
                      That’s correct. There’s a thin red on the back of the ignition switch that’s stays on till you pull the key.

                      Anyway, take the switched power out from the radio and connect it to the white to power the aerial

                      S2 Coupe 3B Project


                      Ur quattro restoration

                      S2 Avant

                      Boost is the new rock and roll!
                      sigpic

                      Comment


                      • #12
                        Originally posted by Jamesey View Post

                        Thanks mate .
                        Mines only got 4 wires on the live iso plug ...1 permanent live , earth , white wire and a very thin brown
                        To get the radio to work with the 4 wire ISO you have to connect both constant and switched from the radio to the 12v on the ISO

                        Or if the radio is ISO then bridge A4 and A7

                        S2 Coupe 3B Project


                        Ur quattro restoration

                        S2 Avant

                        Boost is the new rock and roll!
                        sigpic

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                        • #13
                          I replaced the amplified base on mine years ago and the radio reception was still rubbish.
                          91 Modded 3B
                          14 A6 Avant Black Edition

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                          • #14
                            Originally posted by SteveH View Post
                            I replaced the amplified base on mine years ago and the radio reception was still rubbish.
                            Me too
                            Honda CBR 1100XX Blackbird Turbo....undergoing major changes.....
                            S2 Coupe... bit easier off the line...
                            '03 ZX12-R daily hack.... lots of nice bolt ons...

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                            • #15
                              Stuck a merc sprinter item on mine, better, but not great still.

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