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Thread: Radio replacement

  1. #1

    Default Radio replacement

    I recently replaced my stock cassette player ( D1 ) with a new Alpine unit. After much trial and tribulation, and several blown fuses, I have audio from the speakers. I also have a significant amount of alternator noise. I've tried re-grounding the head unit to several different points, as well as using a noise isolator on the head unit - no improvement. All the car audio stores I've stopped in tell me to just take out the entire system and replace the factory speakers, amp, etc. I have enough other noise (roof rack, M/Ts) that I'm not looking for high-end sound... but a lack of alternator noise would be nice!

    Anyone have any experience with these stereos (factory amplified system) and grounding? My understanding is that the factory system uses a "common ground" for the speakers - could this be a significant factor? If so, how and why?

    Getting the factory subwoofers to work again will be the next question - but one thing at a time...

    Stephen
    99 D1
    06 LR3
    09 LR2

  2. #2

    Default

    What model are you working with?

  3. #3

    Default

    Alpine CDA-9883
    99 D1
    06 LR3
    09 LR2

  4. #4
    Join Date
    Jan 2007
    Location
    Holly Ridge, NC
    Posts
    621

    Default

    They make a noise isolator, cant remember what it is called. I used one on my D1 when i put in a Pioneer. My Disco also liked to play its electronic melody over my music, got quite annoying. I think it may have to do something with the ignition system too, either the plug wires or something else.

    have fun.
    First but gone: 91 3 door Disco "White Rhino"
    77 Series III 88 ex MoD "Shongololo"
    Gone and I miss her: 97 D1 5 speed
    04 DII
    08 D3 (LR3)

  5. #5
    Join Date
    Mar 2007
    Location
    Orleans, VT
    Posts
    12

    Default

    I know this is an old thread, but I had the same trouble in my 93 Range Rover and I ended up replacing the Coil Suppressor on the ignition coil under the hood and that did the trick. Not sure if D1's have those, but here is the RR part:

    http://www.roversnorth.com/store/p-2...tion-coil.aspx

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