John, I too am in a world of hurt with Sync.
My dear, beautiful, intelligent wife left the sun roof open in her 2009 Flex.....>.>>>> It rained.<<<<< Me? I'm the idiot who opted for the $1,000 deductible on the insurance. Wont make that mistake again.
After much drying and now 1 year of time the best I can get is the whole left side of the controls are inop, rear air inop, all sync functions inop but the stereo plays (have to use the steering wheel controls) and the fwd AC works,,,... sort of.
Rear AV system,works. We do not have navigation.system installed, only AV.
Pretty sure its gonna be a mass component swap thing and my local Ford dealer is such a prick I drove four hours away to buy this one.
You wouldn't happen to have a few spare circuit boards under your bench collecting dust would you?