No sound output with DAC and Balena sound

I have recently acquired a pimoroni audio DAC SHIM for my pi zero w, and am trying to use Balena sound to add bluetooth to my car stereo. I’m able to bluetooth to the pi, but I can’t get it to produce sound. The docs suggest setting

dtoverlay=hifiberry-dac
gpio=25=op,dh

So I changed the device configuration in Balena to,

Define DT overlays="hifiberry-dac"

but for the gpio part, I wasn’t sure what to change. I think changing this setting broke the pi, as I havent been to access the pi afterwards, instead I’m just getting the error:

Request error: tunneling socket could not be established, statusCode=500

when I try and make the light flash on it. Anyway, I’m extremely lost. If anyone can give some tips, or assistance, I’d really appreciate it.

Thanks

This is the DAC:

This is the tutorial I was following:

log:

16.09.21 21:59:59 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:01 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:03 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:04 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:04 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:06 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:08 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:09 (+1000) Service exited 'spotify sha256:90598580e27badc24f7df5f64acccfc44d8bb20b4e9b3dba118610a8f35d584a'
16.09.21 22:00:09 (+1000) Killed service 'spotify sha256:90598580e27badc24f7df5f64acccfc44d8bb20b4e9b3dba118610a8f35d584a'
16.09.21 22:00:09 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:09 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:10 (+1000) Killing service 'sound-supervisor sha256:5a5e92e73b961ed077638f1b72474d7a743433b842ae3bb2fab20d6396960b60'
16.09.21 22:00:10 (+1000) Service is already stopped, removing container 'sound-supervisor sha256:5a5e92e73b961ed077638f1b72474d7a743433b842ae3bb2fab20d6396960b60'
16.09.21 22:00:10 (+1000) Killed service 'sound-supervisor sha256:5a5e92e73b961ed077638f1b72474d7a743433b842ae3bb2fab20d6396960b60'
16.09.21 22:00:11 (+1000) Killing service 'logging sha256:065b139567278a1f02eaa2c780aebe4a205d06169cd4c19f4c3e84359f7da63b'
16.09.21 22:00:12 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:13 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:14 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:14 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:17 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:18 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:19 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:19 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:22 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:24 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:24 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:24 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:27 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:29 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:29 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:29 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:32 (+1000) Killed service 'logging sha256:065b139567278a1f02eaa2c780aebe4a205d06169cd4c19f4c3e84359f7da63b'
16.09.21 22:00:32 (+1000) Service exited 'logging sha256:065b139567278a1f02eaa2c780aebe4a205d06169cd4c19f4c3e84359f7da63b'
16.09.21 22:00:32 (+1000) Killing service 'airplay sha256:dab76470b65aecea8316171c02f6a5668085ce6976fc62d4efd31a5bddcc7004'
16.09.21 22:00:33 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:34 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:34 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:35 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:38 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:39 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:40 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:40 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:43 (+1000)  airplay  Waiting for audioblock to start...
16.09.21 22:00:44 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:45 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:45 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:49 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:50 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:50 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:51 (+1000) Service exited 'airplay sha256:dab76470b65aecea8316171c02f6a5668085ce6976fc62d4efd31a5bddcc7004'
16.09.21 22:00:51 (+1000) Killed service 'airplay sha256:dab76470b65aecea8316171c02f6a5668085ce6976fc62d4efd31a5bddcc7004'
16.09.21 22:00:52 (+1000) Killing service 'bluetooth sha256:fd7091daaf5cf30d1250e0a2e92c58d9231c27aa02a4f7fa175fb34cade986a2'
16.09.21 22:00:54 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:55 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:55 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:00:59 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:00 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:00 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:04 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:05 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:05 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:10 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:10 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:10 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:15 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:15 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:15 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:16 (+1000) Killed service 'bluetooth sha256:fd7091daaf5cf30d1250e0a2e92c58d9231c27aa02a4f7fa175fb34cade986a2'
16.09.21 22:01:17 (+1000) Service exited 'bluetooth sha256:fd7091daaf5cf30d1250e0a2e92c58d9231c27aa02a4f7fa175fb34cade986a2'
16.09.21 22:01:17 (+1000) Killing service 'multiroom-server sha256:811c94828d68f403777863ae458813da12142973125805134ff5bfd1bf4f830a'
16.09.21 22:01:20 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:20 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:21 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:25 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:26 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:26 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:30 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:31 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:31 (+1000)  multiroom-server  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:35 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:36 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:40 (+1000) Killed service 'multiroom-server sha256:811c94828d68f403777863ae458813da12142973125805134ff5bfd1bf4f830a'
16.09.21 22:01:40 (+1000) Service exited 'multiroom-server sha256:811c94828d68f403777863ae458813da12142973125805134ff5bfd1bf4f830a'
16.09.21 22:01:40 (+1000) Killing service 'multiroom-client sha256:8b930bc65643d3b0a9611b2c4cb4ba5722d805988351b3ff73fbcfa5dc807c0d'
16.09.21 22:01:40 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:41 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:45 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:46 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:50 (+1000)  multiroom-client  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:51 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:56 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:01:59 (+1000) Killed service 'multiroom-client sha256:8b930bc65643d3b0a9611b2c4cb4ba5722d805988351b3ff73fbcfa5dc807c0d'
16.09.21 22:01:59 (+1000) Service exited 'multiroom-client sha256:8b930bc65643d3b0a9611b2c4cb4ba5722d805988351b3ff73fbcfa5dc807c0d'
16.09.21 22:02:00 (+1000) Killing service 'audio sha256:9394b37a923adccf23d70bd68f61d95793da10d7692fd08afa95a173224901cb'
16.09.21 22:02:01 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:02:06 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:02:12 (+1000)  audio  Waiting for sound supervisor to start at 172.17.0.1:80
16.09.21 22:02:18 (+1000) Killed service 'audio sha256:9394b37a923adccf23d70bd68f61d95793da10d7692fd08afa95a173224901cb'
16.09.21 22:02:18 (+1000) Service exited 'audio sha256:9394b37a923adccf23d70bd68f61d95793da10d7692fd08afa95a173224901cb'
16.09.21 22:02:18 (+1000) Rebooting

Making a new Balena sound image and adding the custom configuration variable BALENA_HOST_CONFIG_dtoverlay set to hifiberry-dac worked to produce output from bluetooth.