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Axxess AXDSPX-MST1 Data Interface Bypass Harness for 2019 Chevrolet 2014-2018 GM Vehicles

Sorry, this product has been discontinued.

Axxess AXDSPX-MST1 Data Interface Amp Bypass Harness for 2019-2019  Chevrolet 2014-2018 GM Vehicles

Axxess AXDSPX-MST1 Data Interface Bypass Harness for 2019-2019 Chevrolet 2014-2018 GM Vehicles. It includes AXDSP-X and data interface. The multimedia interface will also retain the MOST 25 amplifiers.

Product Information Sheet
Instruction Manual
Spec Sheet


  • Designed for MOST amplifiers
  • MOST data interface included
  • AXDSP-X included
  • Includes an amp bypass harness
  • Retains factory chimes including parking sensor chimes
  • Retains OnStar voice prompts
  • All chimes/voice prompts go through the aftermarket amp
  • Adjustable chime level
  • Micro-B USB updatable

  • GM MOST interface
  • AXBK-1
  • AXDSPX-MST1 harness:
  • AXDSP-X harness (16-pin, 20-pin)
  • GM MOST interface harness (18-pin, 8-pin)
  • Amp bypass harness (16-pin black, 16-pin brown, 16-pin green, 8-pin)

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