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Thread: Replacing CD70 Navi

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    Default Replacing CD70 Navi

    Looking to replace my CD70 Navi unit in my facelift Signum, from what I've worked out it's a Full Can car.

    Now I'm looking to replace it with a DAB unit, I know I could replace it with the CDC40 unit and switch the BC displays, but would this display the correct MPG for my car then or will I need to get it programmed?

    If I replace it with an aftermarket unit will the BC still work? I know the BC can be controlled from the steering wheels rollers as this is how I control it at the moment, but if i remove the stereo do they still work?

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    Full Member Robsey's Avatar
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    Vehicle : Vectra C

    Trim : Energy

    Engine : Z19DTH

    Year : 2005

    Mileage : 131,000

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    Okay - by far the best and cheapest option is to keep the display that you have now - the BC will indeed work without the head-unit fitted.

    Then buy an aftermarket head-unit with DAB included.
    The only slight niggle may be that if you use a steering controls adapter loom for the aftermarket head-unit, then it may prevent the BC from being controlled by the scrollers on the steering wheel.

    If you get a CDC40, then you would need to also get the ascociated DAB box.

    If you get all 3 components (CDC40, GID display and DAB unit), then you may well need to program the display to your car's settings, such as

    ECC or unregulated air-con
    with or without Board Computer
    with or without add-on heater
    Diesel or petrol
    Hatchback & Notchback or Signum & Estate.

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