Hi,
If there is one, it's behind the radio. However, I believe you are correct. It is integral.
I attached the directions below from Ford for the fuel pump relay removal. However, read the highlighted note at the top. If I recall, that is correct, but it wouldn't hurt to check.
The remaining pictures are of the entire powertrain management circuits. I highlighted everything related to the fuel pump. I'm not sure what you have done so far, but it sounds like a lot. Use schematics as a guide to see where power is lost.
Let me know if this helps or if you have other questions.
Take care,
Joe
See pics below. I had to cut the pics in half to make them readable for you. I did overlap them.
Images (Click to make bigger)
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Sunday, February 27th, 2022 AT 9:03 PM