i haven't yet but it would probably only work for hitching up.
don't think it has the range to transmit all the way from the rear of a trailer to the dash of the tow vehicle.
but i'll give mine a try this weekend.
and Zoe the Wonder Dog(R.I.P.)
'07 Roo 23SS pushing an '07 Chevy Avalanche
Equalizer WDH and Prodigy BC