Ah...ok. After looking up that camera model and doing a bit more internet investigating it appears the original camera is indeed a Sony. The Sony service center apparently refers folks to Riverpark (800-442-7717) in Elkhart, IN, which handles all distribution and service matters for Sony backup video systems. Riverparks retailer is RV Cams (877-378-2267). Your replacement appears to be a non-Sony. The Sony's may have had historically bad luck with moisture issues and stopped producing backup cams.
One step closer to having the info I need to possibly replace the original camera with a dual, or adding an additional.
Thanks much...
- Mike