When I bought my Ford Falcon ute, it had sat for 2 1/2 yrs as a non runner.
The owner had tried allsorts of things to get it to start, all to no avail!
He had thrown the towel in and it was offered to me very cheap.
When I went to inspect it, I noticed that the interior light didn't work.
So I made an offer, which was begrudgingly accepted, once the deal was done I replaced the dirty (a bit green and furry) interior light fuse and it started 1st turn...... ya should've seen the look on the poor bastard's face!
It has Ford's Smart Lock security system, and it uses the interior light circuit to tell it if the doors are open, the system detects something is wrong, which in turn trips the immobiliser.......no light = no start.
It comes as no surprise to me that shitty interior light fuse was the cause of your problem.
Modern cars integrate so much of what seems irrelevant shit into essential systems, that a simple failure of something pissy like the interior light can grind the whole shitfight to a halt
"Keep calm, relax, focus on the problem & PULL THE BLOODY TRIGGER"