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Aftermarket radio.

Discussion in 'A4/S4 forum(B5 Chassis)' started by Dec11495, Mar 22, 2014.

  1. Dec11495

    Dec11495 Member

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    Hey guys, I've got the old concert stereo out, went to fit the new one but the connections don't look right. I've been told I need a harness? Which one do I need? Thanks
     
  2. Oranoco

    Oranoco Well-Known Member

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    I assume you have the part amped set up? I wouldn't bother with the adapter lead and would just run a couple of new sets of wires up the car to the back speakers bypassing the amp. Might be nice to swap the rear speakers out whilst you're playing with audio.
     
  3. aragorn

    aragorn "Stick a V8 in it!"
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    really need to know what you've got in there at the moment.

    Most A4's have a part-amped setup as mentioned.

    This has a small amp in the rear which drives the rear speakers, and if its an avant, a small subwoofer too. The front speakers are driven directly by the head unit.

    You can either get a lead to connect the pre-out on your head unit to this amp:

    Car Audio Equipment | Buy online at Car Audio Security

    Or as Oranoco says, you can re-wire the rear speakers into the headunit. If its an avant though you'd lose the sub, so its probably better to just buy the adaptor.
     
  4. Dec11495

    Dec11495 Member

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    I've got an avant and it doesn't have the Bose system. So I'm guessing it's half amped. There's a sub? Where? hahah
     
  5. aragorn

    aragorn "Stick a V8 in it!"
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    In the passenger side cubby.

    If you look in thru the hatch towards the front of the car, you should be able to see the black plastic of its enclosure.
     

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