I have a Bluetooth receiver plugged into my auxiliary port to use for tunes via iPhone. Will that prohibit me using the FP3 to get data while riding?

 

I commented on your other thread. But it's dependent on your phone. Check your BT connection settings for each BT device connected to the phone - my Galaxy s6 allows a separate media connection to my BT receiver, while still connected to FP3. I play Pandora over HK radio via BT receiver (plugged into iPod dock in saddlebag rather than aux port, but that shouldn't matter) while auto tuning and/or monitoring FP3 gauge data on most of my rides.

Had issues with BT disconnections a month or so ago, but that was caused by changes in how the newer version of Android handled BT, and V&H promptly resolved it with an app update.