I have two question s that I need a bit of help with. I am fitting the Zenmuse H3-3D to a F550, the parts I have are the Gimbal and an iOSD2 and theGCU2 that was in the kit. All are fitted and now time to connect it all together, but as I have said there are two questions, Q1 Do I use the jack plug to connect the iOSD AV to the GCU V2.? ( the pics show a DJI Z15 GCU) I presume they are the same thing and just plug together. Q2 For the 3 position switch I have to use a separate channel on the receiver, as I am using S-bus do I plug into a receiver channel or plug into theF3 on the control unit, I am using a Taranis radio. Hope who ever reads this can understand what I am trying to achieve Thanks for any future help.