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  1. V

    Parking, Reverse, GPS & USB installation on aftermarket audio system?

    Just for those looking for this information, I eventually figured all of this out The parking brake switch & reverse sensor wire are both part of PAC RP4-MZ11 harness and so you won't need to run lengthy wires to other spots in the car. My 2012 Mazda 5 does not have an amp so I had to cut the...
  2. V

    Parking, Reverse, GPS & USB installation on aftermarket audio system?

    I have a 2012 Mazda 5 and getting a JVC-KW-M845BW along with the PAC RP4-MZ11, Metra 40-HD10 Antenna Adapter, and Metra 95-7521B Dash Kit to replace the factory unit (which I have already replaced once on my own). JVC has a couple of wires outside of the harness. Given that I am not very...
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