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  1. E46 General
    I have a 2003 M3 with the Harmon-Kardon sound system and Nav. When I push the left knob to turn on the radio, and it won’t turn on – no indicator light and no sound. The fuses are fine (shared with the Nav system, which is working fine). CD’s can be inserted and ejected, but won’t play. Any...
  2. Electronics
    Ok so I am a complete noob when it comes to compatibility on amp, subs, etc. I have HK without nav. and I wanted to keep the stock HU. I don't want anything too crazy but I want a good "bump in the trunk". I plan on wiring a Kicker 2 channel (link below) tapped before the stock amp. Then, a...
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