CAB lights with TTS ??

[Shedmaster 47]

Hi all ; appologies if this has been deat with elsewhere !! 

   I have a  new set of  Hornby  HST power cars (  R3769 )  that i am led to understand are fitted with CAB lights as standard ??

     As i intend to use TTS  sound decoders in this set ( for now !!  )  ; can anyone walk me through the process of getting my cab lights to work please ??

    I use an NCE powercab system ......

Thanks in advance for any possible help ..

     Allan ..

[Shedmaster 47]

Thanks for that richard , now at least i know what to expect when i take possession of said units ..

    They've not arrived yet from the supplier ..

  Thanks again ..