Yes, the Note 3 defaults to an external if one is plugged in. I use this adapter Amazon.com: D & K Exclusives? PC Headset to 3.5mm Smartphone Adapter: Convert Dual 3.5mm to 3.5mm, PC Computer Headset to iPhone, Blackberry, Droid, Palm, Samsung, LG, HTC: Computers & Accessories
The road smart...