I am in the process of doing the same thing in my RV-10. I have a SkyView and a 696 too. Bought the GDL-39 at Oshkosh amd working on a permanent mount. Are you saying the Garmin will send the wx info to the Skyview thru the serial lines? That would be sweet but my expectation is that I'd only see WX on the 696.

Thanks
-Mike Kraus
RV-4 built and sold
RV-10 Flying
KitFox SS7 building