Got a possibly dumb question for anybody knowledgeable about such things. The keyless entry remote on for my Jeep (09 Grand Cherokee/WK), stopped working a few weeks ago. Worked just fine for over a year before that. It was missing the battery cover when I bought the Jeep, so it has an aftermarket casing, but the guts are OEM. Tried a fresh battery, no help. I have a second remote, so it's not that big a deal, but I do like having one as a backup just in case. Should I just say screw it and buy a new remote, or might there be a way to salvage this one?