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    1. · Premium Member
      1987 MA71 R154 Pearl White, Blue Velour
      Joined
      ·
      1,507 Posts
      Also too, refer back to my 87 design for ideas. Basically my rear 2 channels are sub only. 10" Punch. The alpine 4 channel amp provides the power, with the rear being set to low pass and adjusted. I also have a bass knob that I can use to fine tune a song if its subbing too much.

      The front channels are also hi passed on the amp, with the 2 piece Fosgates in the doors also having their own crossover.

      Other than that, the Alpine also handles the step down of the speaker power coming from the factory head unit.

      If you can make THAT work, you're golden..

      Amp https://www.amazon.com/gp/product/B00BLQA9BM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

      Knob: https://www.amazon.com/gp/product/B07484YZZG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

      Two subs: https://www.amazon.com/gp/product/B004UFHX4W/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

      Some of these: https://www.amazon.com/gp/product/B00G352P2C/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

      Doors: https://www.amazon.com/gp/product/B00WTMYLBG/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1


      Basically Head unit all 4 channels go to Alipine. At that point I ran all new wires back up front from the amp to connect with factory speaker wiring.

      I extended the rear speaker wiring from the pods to where I could plug them into my sub box. I thought I might need heavier gauge wire to the subs, but honestly it sounds just fine with the original wires and less trouble.

      Let me know what you find.
       
    1. · Premium Member
      1987 MA71 R154 Pearl White, Blue Velour
      Joined
      ·
      1,507 Posts
      This is my amp

      Knob

      2 Subs

      Door Set

      Wiring
       
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