I got a 98 DeVille a couple months ago. It had a sony cd player in it when I got it. Well the factory alarm started messing up and everything on the dash would reset on the digial dash. I searched on the Cadillac forum and discovered i needed an afermarker part called a gmrc-03. So I got it and installed it, problems solved, for about a week or so. Now its doing the same shit again. Anyone know whats up with it?