I have an Aristo Craft FA A-unit with AirWire G4 Decoder along with Phoenix P8 Sound and have a matching B-unit that is stock. What is needed to run the B unit with the A? I'm not concerned with additional sound in the B nor using the smoke unit. Just to run it with the A. I've gotten a couple different answers from people here in town but neither have actually done it so I thought I'd ask the experts. Any help is greatly appreciated. Thanks!