Aurorav8,
When you say the wax is gone in 3-5 days, do you only mean in certain spots or do you mean the whole car? If it's only in certain spots, such as the ones I see looking at the picture, I wonder if it's heat related from the engine compartment. Does your hood have a heat shield installed on it? If it doesn't, the hood may get too hot from the engine in certain areas and maybe the wax melted off.
I used to wax a 91 camry quite often, but there was this area on the hood that always stopped beading water first, and it started fading after a few years. It wasn't until years later when a friend with a camry popped his hood open that I realized there's supposed to be a heat shield. The one I took care of didn't have one, just bare metal underneath. I think that's what caused the wax to not hold and the paint to be damaged.
I wonder if this is the problem you're having with your car.