• 0:40 VCC +12V and ground connection amplifier card
  • 0:58 5V for BT module connection
  • 1:26 speaker output details point 10 and 12 for each Audio IC
  • 1:37 input audio line from BT module to amplifier
  • 3:50 VCC ground and 5V identification of BT module
  • 6:30 BT module to amplifier audio connection