Last year I purchased a Global Decathlon that came with a 4 channel Cirrus DPR 4fm radio system. I don't care for the electric plane and I want to use the radio system in one of my half A planes. My question is, with the electric system the speed control plugged into the receiver and feed the system with power from the motor battery pack. It is a micro receiver and it only has four plug inputs. If I want to use all four channel how do I get power to the receiver. Second question, if I use it on a three channel plane can I just plug the battery in to the unused channel. I really bought the plane just for the micro system, was this a mistake. Any info would be helpful.

Plug a Y harness into any receiver channel. One side of the Y will go to a servo and the other side to the power source.

you can plug the battery into any servo port. its just a power block. and or use a y-harness in any channel and plug the battery into one side and the servo to the other

Thanks for the assistance.