Now you've got me, how did I turn them on?
The beacons are wired via that Turnigy switch, when I used it with the Planet T7 it was just flicked on/off via one of the switches, which channel on the rx that switch is plugged I cant think, If your using your T5 try connecting it to channel 5 on the receiver?
Now the headlights, you can turn them on off via transmitter But they will always run through a sequence, ie head lights, main beam, roof and bumper lights, then off.
You can over ride this by pushing one of the tiny buttons on the control unit in the tank, one push for headlight, another for main beam and so on.
I think from memory it might be the one next to the volume control, but try each one in turn until they come on.
Also try pushing something into the fifth wheel like a screwdriver, with the sound on your here a loud clunk and you will then get full power.
You can do away with that if you want by just connecting the two green wires together so you always get full power.
Ian