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  1. Aftermarket Audio Upgrades using only Factory Cutouts..

    Car Electronics- Lights, Fuses, Audio & Video
    As the title says.. I'm looking to completely upgrade the audio in my 15 Challenger SXT+ I believe I have the sound group 1 package as the door speaker grills say Alpine but I have no Sub. I'll check tomorrow under the dash for the amp. But assuming that is the package I have, I have a few...
  2. harmon kardon need signal for LOC

    Car Electronics- Lights, Fuses, Audio & Video
    hey guys-did a search but didnt find what i was looking for, so if this has been addressed-please forgive me. I am adding bass to my 2012 srt8 with the HK system. i have metered the wires on the connecter going into the factory sub enclosure but i cannot get a clean signal using a 40Hz test...