I have created a Facebook group for everyone to list their squeaking problem, attempted fixes so far and hopefully, the final solution. Please join and help out this community.
https://www.facebook.com/groups/367938043224956/
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His: 2016 Jag F-Type 'S' Italian Racing Red
Hers: 2012 E84 Deep Sea Blue xDrive28i with HK, CA, PDC, Nav+Prem+Conv+Light Pkgs