And now I'm realizing that the metra BT-5520 won't work in my 2014. And I even read this whole thread!
For anyone with a 2014 who is interested in this: According to Metra they don't have anything with the correct plugs. Looks like Schosche might but they haven't replied to my emails.
If anyone wants a BT-5520 that has had the black bluetooth plugs cutoff you can have it for the cost of shipping. PM me.