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auto hill hold button

  1. S5 Performance & Mods
    After getting the idea to hardwire my V1 into my car with a remote display in the rear view mirror and the Auto Hill Hold (AHH) button as a mute switch from Audizine's Neptunesfinest in his thread Idea for Stealth Radar Detector Install With Mute Button LED, I began my two-week installation...