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  1. #1
    Gti Jazz Blue's Avatar
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    Replacing the stock (Bose) Concert HU A3 (8P)

    Afternoon All,

    I'm currently getting the gear ready to upgrade the A3s sounds. Quick question on the two aerial connections on the Concert. I can use an Autoleads PC3-52 to power the Aerial Amp but what is the smaller aerial connection used for ?

    BTW Kit list will be :

    Alpine DVA-9861Ri HU (full speed IPod)
    Alpine PXA-H600 (optical and AI-Net from the HU)
    Alpine PDX-4.150 BiAmping Fronts
    Alpine PDX-1.1000 Subs
    Focal Utopia Fronts
    Pair DLS 6" Subs in a custom box.

    Thanks,

    Paul
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  3. #2
    timps's Avatar
    Shakersville

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    Its the Diversity aerial connection.

    The theory is that this small connection (Audi calls it the "intermediate frequency line" ) is connected between the radio & the Control unit for aerial selection (contained inside the Audi aerial amp) & the radio uses this connection to tell the diversity switcher which antenna has the strongest signal, and feed that signal down the main HF aerial line.

    Without this line connected the theory again is that the diversity switcher should be stuck on one antenna regardless of signal strength, in effect a normal aerial.

  4. #3
    1st Gear

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    Quote Originally Posted by Gti Jazz Blue
    Afternoon All,

    I'm currently getting the gear ready to upgrade the A3s sounds. Quick question on the two aerial connections on the Concert. I can use an Autoleads PC3-52 to power the Aerial Amp but what is the smaller aerial connection used for ?

    BTW Kit list will be :

    Alpine DVA-9861Ri HU (full speed IPod)
    Alpine PXA-H600 (optical and AI-Net from the HU)
    Alpine PDX-4.150 BiAmping Fronts
    Alpine PDX-1.1000 Subs
    Focal Utopia Fronts
    Pair DLS 6" Subs in a custom box.

    Thanks,

    Paul
    Have you done much planning yet Paul as to how you are fitting it all in?
    ie are you ripping out all the stock equipment like amp and back speakers?

    What size are the front Focal's your using, I'm looking to move my Focals over from my BMW to my new S3 when I get it.

    When you say custom box for the subs is that a more discreet fir than the box in the boot type thing?

  5. #4
    Gti Jazz Blue's Avatar
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    Thanks for the aerial reply I will give it a go, I didn't realise that the A3 had two aerials.

    On the kit front I have the previous generation Utopias to go in it, the size for the fronts is 6.5".

    Not sure what to do on the sub front as AutoAcoustics have confirmed that they will be doing a StealthBoxz for the A3 (8P) but haven't given me a timescale.
    2011 (MY12) Skoda Octavia II FL VRS Manual Hatch 2.0Tsi in Race Blue.
    Gone not forgotten -
    2005 Black A3 (8P1) S-Line 2.0TDi DSG. Eibach Pro Springs, Koni FSD shocks and a few bling bits inside.
    Revo 99 GTi Turbo, too much to list mod wise.
    92 Golf Gti Mark 2 16V.

    VCDS HEX-USB+CAN

  6. #5
    timps's Avatar
    Shakersville

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    Quote Originally Posted by Gti Jazz Blue
    Thanks for the aerial reply I will give it a go, I didn't realise that the A3 had two aerials.
    Yes on the concert and symphony radios but not on the Chorus radio


    concert and symphony radio systems with active loudspeakers
    1 - Bottom rear window aerial
    2 - Aerial module on tailgate (bottom left)
    3 - concert or symphony radio
    4 - Front mid-range/bass loudspeaker in lower door trim
    5 - Treble speaker in centre of A-pillar
    6 - Centre mid-range/treble loudspeaker in front centre of dash panel
    7 - Rear loudspeaker in side trim
    8 - Amplifier with bass loudspeaker behind side trim on left of luggage compartment
    9 - CD changer in glove box (optional)
    10 - Aerial amplifier at top left of tailgate
    11 - Top rear window aerial


 

 

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