My 04 rims are different then yours but they did leak around the rims. Like you I had trouble with the fronts. I found the leaks by doing the old soappy water test on the tire, valve stems and rims. After I found they were leaking at the beads on the sides of the rims. I had a local garage remove the tires from the rims. He then cleaned up the bead areas on the side of the rims because they were built up with some flakey material. Then he coated the inside of the bead area on the rim with some grey like paint or sealer and I havent had any trouble since. A good tire changer will no what to look for if you tell him they are leaking around the beads.