Snaps are easy to replace. Go to a marine store (West Marine) and get a new snap and cap, 2 pcs. Also buy a peening tool and anvil. Follow the instructions and put the new snap on. To prevent future problems, clean and lubricate all snaps. Also, most important, only remove snaps with a forked, nylon, door panel removal tool properly wedged under the snap and payed up. Got it?