Does anyone know what the two white body plugs are for the sc300. I am trying to look up the pinouts for them but can not tell what connector they are.

I know the orange one is IK1
I know the Gray one is IJ1 - this is the one that has 4 pins high
I know the Gray one is IJ2 - this is the one that has 2 pins high

There are 3 white plugs and can not see which ones they are.

Thanks in advance.