Here is a simple tool to help you loosen a cannon plug in a high density area. This should allow you to remove just the cannon plug that you want without having to losses all others just to reach the one that you want. This needs to be printed in either ABS plastic or Nylon/Carbon, PLA is to weak for this application. This is the first iteration of the tool I have seen these before but as I use it I will update the file and try to improve form factor and strength.
Print time - 1:20
Print Cost - $0.22
Based on -
thrustaviation.co/ols/products/cannon-plug-strap-wrench