i dont think that could possibly be a f125 cab based off the window shapes and analogue instruments (not to mention cab color)
Honestly, I would think a quick Google search would bring up a photo, but it keeps giving me Siemens Charger cabs. And the closest thing I can get is this video of a Rotem Cab Car. With Metrolink being the only owner of the F125, I wonder if they have a strict policy with photos and videos inside their equipment.
This video has some (limited) interior shots starting at 0:58. Additionally, this site has a computer render of the driver's controls. http://trainweb.org/carl/2017CaliforniaPassengerRailSummit/Slides/Tripoli/index.html
Dumb me forgot about the Chatsworth Train Collision, so I assume since then, Metrolink has been pretty strict on in cab electronics. Which would include photos and/or video in the cab.
THREE YEARS LATER and we get not a cockpit photo but a whole route with the loco itself in the game. I am content lol