use to run a porsche 944 so im not too familar w/ mazdas. What is the best way to install a system in the es? (amp 2-10's) and stock head unit for now.

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Well i figured out the removal part but now the question is the wiring. Is there a wiring harness needed to hook up an amp the the factory head unit? Or is this even possible? I am trying to keep the cost down until i go active air force in dec. so if any on has any sugestions they are much appreciated.

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