i have this Sanwa MX-3 Transmitter that c/w receiver and servo. The receiver has total of 4 slots :
Slot 1 - Steering
Slot 2 - Throttle
Slot 3 - Aux
Slot 4 - B/Dsc
Does anyone knows wat slot 4 is for? Is that the brake lights. i intended to DIY some white LED light for my YDP RX-7 but as there are no light buckets available, do u think its nice if i drill a hole and stuff the LED tru the hole?