I have an image of what you can do in this thread in the ASIAIR Forum couple of weeks ago:
https://bbs.astronomy-imaging-camera.com/d/12030-asiair-power-connection
Be sure to not just use gaffer tape, but also to strain relive the cables by doubling it back towards the camera and then cable tie (or tightly velcro tie) to the camera body -- the aim is for zero movement of the plugs in their jack.
If you find that you have power glitches, see if you can find a 2.1mm plug that has a better spring for the center pin. Places like Mouser and Digikey have plugs from reputable manufacturers.
You will find that as temperature warms up in Spring, your problem may slowly go away. ZWO apparently don't test connectors that they use in cold climates. Many consumer connectors are only rated for use above 0ºC, and also when they are stationary on the desktop.
I believe I had mentioned that you can use silicone RTV to hold the plugs to the jacks if you don't move the camera between telescopes.
For less permanency than Silicon RTV and duct tape, in addition to gaffer tape, you can try the modern Nano Tapes (tons of them at Amazon). Like gaffer tape, Nano tapes also leave no residue when you remove them. But Nano tapes have sightly spongy feel to it, so while it can be more secure than gaffer tape, the flexure might not be as good as gaffer tape for this purpose.
Chen