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Asa 1197 car radio floating in - How to connect aux

pakkeri 66 0
  • #1
    pakkeri
    Level 1  
    How to connect Bluetooth DAC to old mono car radio. Radio has din connector on backpanel. When input is used, jumper is removed which connect radio signal to input.
    Trouble is that input ground is floating 12v.
    Dac signal ground and supply ground is same potential. Other question, how to sum L+R to mono input.