No Sound on Hudiy Platform / Android Auto

[absolute^newbie]

Hey, I really wanted to upgrade the RTI system in my Volvo.

After I installed, set up, and started everything, I noticed that if media starts on my phone, the UI shows that something is playing on Spotify. However, I'm not able to hear anything through my car's music speakers. I connected the Pi 4 B 8GB via aux with a USB sound card adapter that supports a mic and a headphone jack separately. Now I only want to use the AV Jack, but, like I said, no media is playing. If I close Android Auto/Hudiy and choose the USB Device as the output source (on Raspi OS), I can hear my music via Bluetooth. I already disabled the internal HDMI and AV jack, so that only the USB Device is an option when I tap on the Volume sign.

So what can I do to make it work?
Could someone please explain the steps to me because I'm learning everything right now.

[hudiy]

Hello,
Could you please provide the output of the pactl list sinks and pactl list sources commands? Could you please describe how you disabled the HDMI and Jack outputs?

Could you also provide a screenshot of qpwgraph (it can be installed via sudo apt install qpwgraph command)? This will help us check the audio routing generated by PipeWire.

[absolute^newbie]

Okay, I'm sorry for wasting your time. I've installed Hudiy from the beginning, and everything works now!