Whirring sound on acceleration

[JurassicRanger]

Hey all.

I’ve had my truck a couple months now, and loving it. Still a couple things that I’ve noticed that I’m trying to figure out if they’re normal or not. One is this whirring sound that seems to come from under the truck under the back seats on acceleration. I’m assuming it may be the fuel pump? Do y’all hear this on y’all’s trucks too? I accelerate twice in the video, and you can hear it both times, but it’s significantly louder the second time towards the end of the video.
Whirring sound on acceleration

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[donkey]

Cant hear anything man /:

 

[ChronciallyChronic]

All I hear is tire noise and the engine going vroom vroom.

 

[Texas Ranger]

I can hear it.

 

[KDub]

Is it not the popular in-cabin A/C compressor sound that tracks with the engine RPM but vanishes in fall when the A/C is turned off?

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