Using more UARTs for serial communication on DevKit

Hi @carolyuu @JerryChang
How could we use two uart devices with Jetson Xavier NX devkit board?
Given we are wiring two gps units - one of them uses UART from 40 pin header, how would we connect the second UART unit? Can J14 UART [TX/RX] be used? folks reported issues using it as in Use UART Pins on Jetson Xavier NX J14 - #14 by td11