PAC – AP4-GM61



Amplifier Integration Interface for Select GM vehicles with Bose system. Eliminates the GM head unit from the signal path – acts as Digital-to-Analog converter and remote-controlled preamp!


  • Upgrade solution for factory, fixed level, data-bus controlled sound systems
  • Prevents need for summing and audio correction devices
  • Variable volume, fade, balance, bass, mid, and treble audio settings
  • Retains