Pirate Audio I2S pins?

Hi there,

I’m trying to connect directly to the i2s pins on the pirate audio line-out for raspberry pi. Just wondering if there is a pinout anywhere so that I can know which pins to hook-up to. Basically looking for where to connect BLK, DATA, and LRCK pins.

Thanks!

Looks like 12, 35, 40…but dunno which is which https://pinout.xyz/pinout/pirate_audio_speaker - best of luck from here!