Connecting Reciever to Orange Cube +

I have a RadioMaster RP4TD receiver and I want to connect it to my Hex Orange Cube Plus. Can I use regular servo connectors, soldering the positive (+), negative (-), and signal (RX or TX i don’t know which one to use?!) wires to the RC IN ports on the Cube Plus?

I think you’ll have to use Telem1 or Telem2, since GPS2(Serial4) is not a full DMA port.
I would probably use Telem1 and power the receiver from that port too since it has an isolated +5v supply separate to the other accessories.