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  1. Installing Sub+Amp to a CD400 stereo in an Astra J

    ICE & Electrics
    Hi all, I've done a lot of searching forums etc trying to find a solution to this over the past few months. I've wired a fair few subwoofers myself in old cars etc, but cannot figure this one out as swapping the head unit in the Astra J is so expensive. I'd like to get a subwoofer and amp...
  2. Question about Astra H head unit / fitting sub

    Astra H
    Hi I currently have a 2007 Astra H with a standard head unit / sat nav built in. I was wondering if anybody know's if there are connections on the back of the head unit for fitting a subwoofer? It is a 1.8 Astra Club. Thanks
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