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  1. #1
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    Want to fit and aftermarket headunit but keep amplified speakers.

    As above guys, what iso lead will I need to get? and I will also be fitting a sub and amp.
    Its for an 2004 8p1.

    Cheers

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  3. #2
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    Anyone got a clue?

  4. #3
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    do you have bose?
    A3 Sportback 2.0TDI
    Dark Headlining, Bose, Alcantara Leather, Interior Lights Pack

    MODS:
    S3 facelift,
    RS3 Grill, 19" RS6, TTRS FBMFSW, A5 S-Line Heated Seats, Bi-Xenons, Auto Lights & Wipers, Eibach Sportlines, Auto Folding & Dimming Dumbo Mirrors, S3 brakes, US Centre Console, Cruise, Pioneer HU, Reverse Camera, OEM Parking Sensors, LED Tail Lights, S3 Pedals, Tints, Carbon Trims.

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    Im not sure tbh, ive just got a concert single din headunit.

  6. #5
    Ash187's Avatar
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    when you switch on the car does it say BOSE on the radio display? do you have BOSE on the front speaker grills?
    A3 Sportback 2.0TDI
    Dark Headlining, Bose, Alcantara Leather, Interior Lights Pack

    MODS:
    S3 facelift,
    RS3 Grill, 19" RS6, TTRS FBMFSW, A5 S-Line Heated Seats, Bi-Xenons, Auto Lights & Wipers, Eibach Sportlines, Auto Folding & Dimming Dumbo Mirrors, S3 brakes, US Centre Console, Cruise, Pioneer HU, Reverse Camera, OEM Parking Sensors, LED Tail Lights, S3 Pedals, Tints, Carbon Trims.

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    No no, none of that. But I have got a standard sub, well it sounds like one in my boot!?

  8. #7
    Digzz's Avatar
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    check this out : AndyMac Stealth Sub for 8P completed

    T
    here is also a PDF Guide for install...

  9. #8
    Ash187's Avatar
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    this should do it
    CT20AU04 Harness Adaptor for Audi vehicles 2004>


    its worth asking in the ice section of the forum too!
    A3 Sportback 2.0TDI
    Dark Headlining, Bose, Alcantara Leather, Interior Lights Pack

    MODS:
    S3 facelift,
    RS3 Grill, 19" RS6, TTRS FBMFSW, A5 S-Line Heated Seats, Bi-Xenons, Auto Lights & Wipers, Eibach Sportlines, Auto Folding & Dimming Dumbo Mirrors, S3 brakes, US Centre Console, Cruise, Pioneer HU, Reverse Camera, OEM Parking Sensors, LED Tail Lights, S3 Pedals, Tints, Carbon Trims.

  10. #9
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    All single DIN HU's are ISO (not quadlock), so you'll need the ISO kit:
    Autoleads PC9-404 Audi Harness Adaptor (RCA, non-BOSE) 7.99 including VAT. PC9404. Buy discounted car audio online at In-Car Express

    But as you're fitting a proper sub you'll need to run an RCA & power cable so you'd be far better off rewiring the rear speakers to the HU and bypassing the Audi wiring altogether. Otherwise you'll have 2 x 50w+ going to the fronts and still have the feeble 2 x 20w going to the rears from the Audi rear amp. You can pick up the feeds for the rears from the connector on the Audi sub, so no need to dismantle half the car.
    "How to tear apart the ties that bind, perhaps fcuk off might be too kind"
    Alex Turner

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    Ahh thanks guys, do I definitely need to get that iso lead Andy mentioned?

  12. #11
    Naj
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    Quote Originally Posted by AndyMac View Post
    Otherwise you'll have 2 x 50w+ going to the fronts and still have the feeble 2 x 20w going to the rears from the Audi rear amp. You can pick up the feeds for the rears from the connector on the Audi sub, so no need to dismantle half the car.
    Im a novice with ICE. I recently changed over my HU and only get sound to the front speakers. Can you elaborate on this abit more. Non-Bose also.
    04 Audi A3 2.0 TDI Sport

  13. #12
    Ash187's Avatar
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    Bose systems are all amplified off of one Bose amp.
    non Bose units have the fronts amplified from the HU and the rears off a small crappy amp like thing with the crappy plastic sub.
    if you change over the HU you would need to make sure you have the correct wiring adapters to be able to listen to the sounds properly from all speakers.

    Andy was saying as the OP is going to put in a proper sub and do away with the crappy plastic thing he may as well wire in the rear speakers to the HU directly and then run the new Sub via RCAs to the HU as per normal
    A3 Sportback 2.0TDI
    Dark Headlining, Bose, Alcantara Leather, Interior Lights Pack

    MODS:
    S3 facelift,
    RS3 Grill, 19" RS6, TTRS FBMFSW, A5 S-Line Heated Seats, Bi-Xenons, Auto Lights & Wipers, Eibach Sportlines, Auto Folding & Dimming Dumbo Mirrors, S3 brakes, US Centre Console, Cruise, Pioneer HU, Reverse Camera, OEM Parking Sensors, LED Tail Lights, S3 Pedals, Tints, Carbon Trims.

  14. #13
    Naj
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    Can I not just pick the rear speaker feeds from the Audi adapters behind the HU? Just don't wanna be pulling out interior panels to run new wiring from rear speakers to HU.
    04 Audi A3 2.0 TDI Sport

  15. #14
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    in your case as you are just using a new HU and not playing with anything else i would guess that you are using the wrong harness adapter as it should have just worked. have a browse through the ICE section of the forum for similar issues as i vaguely remember seeing an issue like yours a while back.
    A3 Sportback 2.0TDI
    Dark Headlining, Bose, Alcantara Leather, Interior Lights Pack

    MODS:
    S3 facelift,
    RS3 Grill, 19" RS6, TTRS FBMFSW, A5 S-Line Heated Seats, Bi-Xenons, Auto Lights & Wipers, Eibach Sportlines, Auto Folding & Dimming Dumbo Mirrors, S3 brakes, US Centre Console, Cruise, Pioneer HU, Reverse Camera, OEM Parking Sensors, LED Tail Lights, S3 Pedals, Tints, Carbon Trims.

  16. #15
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    There are no rear speaker feeds at the HU, that's the problem. You either buy an adapter that feeds the rear pre-outs (RCA's) into the Auid rear/sub amp loom or rewire the rears directly to the new HU. As already said you don't have to pull all the panels off as you can pick up the feeds to the speakers from the connector going to the sub
    "How to tear apart the ties that bind, perhaps fcuk off might be too kind"
    Alex Turner

  17. #16
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    Cool

    Andy do you have a link for an amplifier adaptor that could be used with quad lock (07)? Is it possible to get one which incorporates steering wheel controls? I've had a look at auto leads and connect 2 but not sure which one i need.

    Planning on changing my rns for an alpine one unit in the next week or so

    Cheers

    non-bose btw

  18. #17
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    Quote Originally Posted by moag View Post
    Andy do you have a link for an amplifier adaptor that could be used with quad lock (07)? Is it possible to get one which incorporates steering wheel controls? I've had a look at auto leads and connect 2 but not sure which one i need.

    Planning on changing my rns for an alpine one unit in the next week or so

    Cheers

    non-bose btw
    i think this is what you need

    CTSAD002 CAN-Bus steering control adaptor


    with the alpine bit

    Connects2 Alpine Stalk Adaptor
    A3 Sportback 2.0TDI
    Dark Headlining, Bose, Alcantara Leather, Interior Lights Pack

    MODS:
    S3 facelift,
    RS3 Grill, 19" RS6, TTRS FBMFSW, A5 S-Line Heated Seats, Bi-Xenons, Auto Lights & Wipers, Eibach Sportlines, Auto Folding & Dimming Dumbo Mirrors, S3 brakes, US Centre Console, Cruise, Pioneer HU, Reverse Camera, OEM Parking Sensors, LED Tail Lights, S3 Pedals, Tints, Carbon Trims.

  19. #18
    Naj
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    Quote Originally Posted by itwasntme187 View Post
    in your case as you are just using a new HU and not playing with anything else i would guess that you are using the wrong harness adapter as it should have just worked.
    Do you know of the correct harness adapter to use for a 2004 non-Bose single din HU?
    04 Audi A3 2.0 TDI Sport

  20. #19
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    Yes the one I posted above PC9-404
    "How to tear apart the ties that bind, perhaps fcuk off might be too kind"
    Alex Turner

  21. #20
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    Quote Originally Posted by AndyMac View Post
    Yes the one I posted above PC9-404
    Theres one thing I dont get, why is there RCA's on it? I will be fitting an Alpine headunit.

  22. #21
    Naj
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    Quote Originally Posted by AndyMac View Post
    Yes the one I posted above PC9-404
    Thanks, for £8 no harm in trying it.
    04 Audi A3 2.0 TDI Sport

 

 

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