Either port works... By the way, don't use cheap third party cables... I have 3 cables I tried and it was giving me connection problems. When I used my OEM cable from my Smartphone it worked awesome and all issues went away. May want to look into that as well. I went ahead and left my OEM cable in the Mustang and now using the third party cables to charge my phone at night at home. I have a Samsung S7 Edge, just FYR...
Can you elaborate on this?
I used a thin strip of double sided tape to route a cable that is the exact needed length to go from my front usb port to my cell phone cradle mounted to the vent on the right side of instrument cluster. I'll have to post a pic to do it justice. I dont want to pill that cable off, it is tucked in perfectly. I am out of town and away from the ability to try another cable, so I'll just have to wait.
USB plugs directly to phone. Hopefully new cable will sort it out.
Not necessarily... Like I said, I had data through third party cables, but when it comes to Android Auto, it would disconnect randomly. I was only able to get a stable connection using my Samsung OEM cable. Not sure why, but that's how mine worked.
It's probably a difference in shielding or twist rates.
Most probably, but hoping #Lost can get his up and running... Could be having the same problem as me.
Try doing a Master Reset to the Sync 3 if all else fails. Note that you will loose all your settings, but worth a try. Try to use a Samsung OEM cable or Belking like scott_0 suggested.
It should not... It should only reset it back using the latest software package. Just like when you do an OS update on the phone. Once you reset a phone it keeps the new OS, just sets everything back to defaults and erases all cached items. It may clear up any flukes after the flash. However, if you don't want to risk it, don't do it... I might do a Reset on mine since sometimes it is a bit laggy when first loading up. If you want to wait, I can let you know and even do a video.
It will not.