FrSky V8HT into futaba 3GR

[feasty33]

Hi,

Am fitting the above into my 40meg 3GR and just had a quick question regarding the internal wiring.

I understand the wiring required (pos, neg & ppm) but am unsure about disconnecting the original 40meg transmitter board.
You see, mine is a fully synthesised version with no xtal to leave out!
I'm worried that if I leave it connected it will still try to transmit on 40meg, albeit without its aerial.

Should I disconnect one of the wires (or all 3) from the 40meg board so it can't transmit, or not worry?

Many thanks in advance!
Dave