Finally got a few minutes to edit a quick video. Here is the final result installed. I will do a better indepth view of it later.
For now, just wanted to show you how it worked.

This is a 1000e heater being ran off of a RELIABLE INVERTERS 1500w continuous in my 2006 Dodge Ram 3500 Pickup.

It ran my 1000w heater without issues at idle, and at highway speeds it holds above 14v.
I didn't want to pull my dash to fix all the doors and parts inside, I opted for something I'll get more use out of rather than fixing a heater to live in HAWAII.

Thanks for watching!

Any questions or comments, drop em right below. Thanks