reversing DX3s remote start channel

[shaunjohnson]

i hope i am missing something here...
you see i have just got my monster back and hooked up the horns to the revo via a shitty (dosent work like it should right from the start ) turnigy receiver controlled switch.
so when i hold the remote start button on the transmitter, the horns are off, release the button and they are on.
need to reverse this action and i dont know how.
yes i could hook them up to the proper AUX channel but it's less convinient.
can someone help me?
shaun