I believe the FP0 has the same tool port connection as the FPX, which is a 5-pin Mini DIN. Unfortunately this type of connector is an oddball and hard to come by. Don't confuse it with the non-mini version which is more common but not compatible. Your best bet would probably be to look for a cable on eBay with the correct plug on one end, then cut off the other end and re-terminate. (Tool port pinout is in the FP0 manual.)