Need help second sound card or other tip

edited May 13 in Projects

Hello,
I would like to set up my handsfree on the raspi the current setup is as follows the raspi goes into the radio this goes to the amplifier and the radio also turns off the mute that the music is off and now my problem starts
Since I would like to install AntoidAuto times the sound will indeed have to run on the Raspi
So I would need a second sound card that I would only assign the speakerphone is that possible?

or has someone else tip

greet Mathias

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