Couldn’t you just drill a hole in the aluminum plate for the new coax to fit into the helical.
Here’s how we did the M2 kit. That’s just a rubber spacer with a slot cut for the cable to fit under. It has worked well although the drone has trouble when satellite counts are low that day. Only occasionally though. I plan on making a slightly different mount to move it a little forward and a little higher but I just haven’t had time with all the new projects we have starting up.
