With good soldering skills. You need to get on and off that pad fast or you risk killing the board as it is very fragile.
Another option is to use an X7 antenna with the IPX connector.. We may still have a couple in the shop.. Let me check.. Yes, I have a few of the X7 antennas in black with the IPX connectors. This is a direct swap into your X9D that has an IPX. If you would like to buy one, please email us at email@example.com and you can just copy and paste this message and we will get you going.