auto door unlock/ lock with the key fob and opening trunk with key fob quit working. Had a leak in the trunk due to accident and wayer got down where the battery is. Sales tech told me that the amplifier was out and needed to be replaced. Well i didnt want to spend 1200 on a new part for this older car. Where is tgis part located? I would like to get a salvage yard part but dont know how to find it and the salvage guy needs the numbwrs from it to match it properly. Help.
2006 E 350