How do I prevent Ford Sync from connecting to the phone when it's been already paired and working with aa wireless

[whiskey]

I have aa wireless which lets me run third party apps to watch video, it runs great for a couple of times and then Ford Sync makes a new connection and bypasses aa wireless. In order to fix this I have to clear the cache for Android auto and then reconnect to aa wireless. Is there anyway to bypass Ford Sync to make sure it stays connected to aa wireless?