2011 Peterbilt 387 not starting

I’m looking for the starter relay on a 2011 Peterbilt 387.

I have found 2 fuse box locations.

1) Behind glovebox
2) Sleeper compartment inside passenger side access door.

I do not have a fuse box on firewall on passenger side or driver side.

I do not have a fuse box under dash by where a clutch pedal would be. (I have an automatic)

Any ideas?

 

1XP7D49X7BD125923

 

It’s in Park. Did a rest disconnecting all batteries as you suggested and no go.

 

Just found out from a dealer the starter relay may be behind the instrument cluster. Supposedly because it’s an automatic it doesn’t have the fuse box under the hood. Im going to check that now

 

Nothing. It clicks through the starting cycle. Instruments light up, Gauges sweep etc but nothing from the starter

 

I would appreciate that