Calling in the pros! Part Locations?

[Johnny Glenn]

Thanks for looking in -- I've recently obtained an 06 Explorer that has engine and trans issues so I've decided to part it out and can't find where some potential valuable parts are hiding?! Transmission modulator, Transmission modulator valve, Air bag crash sensor, and lastly how does one get to the Airbag in the front seat? Thanks for any help and advice!

 

[Johnny Glenn]

I know this is a long post and no-one probably wants to answer all the locations but maybe one part location at a time? Any help is greatly appreciated!