On the exterior I used a paint brush and used Industrial Rustoleum Black Gloss paint. I would have sprayed, but I get impatient and prep work kills me, haha ... It is nice, because if I rub a tree, or a pocket rocket

I can just touch it up with the black paint. Very easy to take care of, and hide the evidence.
I copied that idea for the interior panels, except I sprayed the Rustoleum because they were outside of the truck. Yes, I had to experiment with the primer. The first time I just tried putting the Herculiner on the rear upper corner pieces (where the third row seat belt mounts) with no primer, it peeled off like a scab. I had to find a primer that would work. Ended up using Rustoleum metal industrial primer. Same ingredients as the plastic primer they make, but dries much quicker. Anything that says, "industrial" is fast drying, ad I just love Rustoleum products. It has held up so far (about 4 weeks or so)
The way I think about it, if somebody wants the jack, they will have the jack. A lock is more to keep a kid away, or somebody that is nervous about stealing will not mess with it, if it is not quick. Any grown man that does not care, can steal it regardless. Just like if somebody wants in your house bad enough, most houses, they will get in, even if it means kicking a door down.
I am not worried about somebody stealing it, so nobody will!
Although, I kind of contradicted myself, because I did put a lock on it
Thanks guys,
-Josh