What do these wires go to? (Pics)

Long time stalker, first time poster. After looking around my truck a little I found these wires hidden under the carpet behind the brake pedal so i started following them back. Most are spliced into the factory brake controller lines so i assumed it was an aftermarket brake controller until i found the relay. Now im not sure. i googled the numbers on the larger harness with no luck. any ideas?

 

Alarm. Definitely aftermarket. You may also have a motion sensor on your steering column somewhere.

 

I also had a ton of miscellaneous wiring in my 2008 that looked a lot like these when I bought my Tacoma and turned out to be an aftermarket alarm/remote start that was removed minus the harness. I would think it would be that if I were to guess. Sorry I couldn't give a definite answer. GL!

 

I'm going to go with flux capacitor