Quantity   Component name
1 × rn52 bluetooth audio module (A2DP + HFP)
1 × arduino pro mini Microcontroller
1 × mcp2515 Can bus
1 × mcp2551 Interface and IO ICs / Controller Area Network (CAN)
1 × TPA6112A2 Audio ICs / Audio Amplifiers
1 × i2c or Can-bus display