UPDATE:
Finally figured out why there was only heat coming out of the air vents!
Since it was one of the last weekends of going down to the trailer, i decided to drive the T/A to camp. On the way down, me and my dad were talking about the heat problem and we we're moving the lever and he notices there's no resistance when you move it. We took apart the center pod and it turns out the cable that controls the hot/cold door snapped, so the lever wasn't moving anything.
Here is the cable. (Ignore the loop, we we're making a test loop.)
Which goes in here at the top, with a loop.
The cable is basically music wire and can be bought at the hobby store for $1-2. Which is where i got a new wire. And then just make a double loop and feed it through. Except it wasn't that easy. The cable wouldn't go through at the end shown above. So it had to go through the other hole, Which meant making a loop while the cable was in the tube. Finished result at the lever end.
When it came to use the cable retainer to make sure the cable was the proper length to move the door fully, it was broken and wouldn't hold the cable. So we used one of these. To go on the stem and pass the cable through, crimp it and bend it at a 90° angle.
When it came time to put the radio back in, i broke one the plastic mounts that hold it in place by accidentally resting the radio on it (The radio is a massive heave brick.)
but was able to epoxy it back and its pretty solid now.
The air is less hot now, there's still some heat as the car has no A/C.