Help Need help uninstalling Directed electronics 3100

Hello, I'm Mark and new to the club. I'm hoping for some quick guidance on the complete uninstall of this anti theft system that was installed by prior owner. It's never worked right and it's gotta go. I followed a couple YouTube videos but it's not working as easily. My truck won't start.
I've taken out anything that wasn't stock and restored everything I could see. You probably know this, not a chipped key.
Thank you!

 

https://www.directeddealers.com/manuals/IG/Avital/N3100 2011-12 print.pdf

Carefully review the installation manual and see if you missed something the needs removal.