Had the same problem 12 yrs ago. Real easy, With a Novak XXTRA ESC. Basically wiring is the same, just the plug is different. Futaba plugs are different then Sanwa/ Airtronics, Hitec. Futaba plugs has a tab on one end, and a angled cut out on the other. Just cut off the tab with a hobby knife and file or sand off the the angled end. it'll work
Other hobbyist change the plug by recrimping connectors and correct plugs, Which are available in some LHS and tools to do the project. Customizing length of your wiring
Good luck!!