Use external antenna for MikroTik wAP LTE kit (RBwAPR-2nD&R11e-LTE)

Hi guys.

I want to add an external antenna for a router but it goes with one single cable?
0) Will I have any problems with connecting with a single cable?

  1. Should I remove both internal antennas or should/can I leave one(if yes which one white or black)?
  2. Or should I use only 2 cables external antenna?

Thank you

open mikrotik.com > hardware > lte devices and you see the u.FL → SMA connectors. - 2x
open mikrotik.com > hardware > lte devices and found r11e-lte documentatiion to discover what pins are Main and Aux/Div for mimo 2x2 antennas.
open wAP R and see that internal antenna can be plugout and then install SMA connectors.