Pixhawk 4 + PM07-V2.2 + Sony A6000

I am fairly new to the diy drone world but thought I’d give it a go. I am working on a VTOL and I have a Sony A6000 that I am trying to connect to the system and auto-trigger during mapping missions. I have an S2 shutter cable that I have connected to the camera. It has 3 wires, and when I touch them together it does take a picture. I am referring to this https://docs.px4.io/v1.9.0/en/peripherals/camera.html but I just can’t get it figured out. In QGroundControl everything setting I have tried hasn’t worked when I attempt to take a test picture. I have tested multiple wiring options to the FMU-PWM out connection with no luck. Can anyone offer some assistance? It would be greatly appreciated. Thanks.