Dac v1 remote replacement

My dac v1 remote seems to have packed up. Put in new batteries, but the dac isnt responding to any buttons on the remote.
I have a SN2 with Narcom5 and the volume buttons on the remote are picked up by the dac ok, so hopefully its just the remote thats died rather than anything on the dac itself.

Couple of questions

  • does anyone know of a way to get the narcom5 to control the input selection on the dac itself (rather than the SN2)?
  • has anyone had any luck with any other replacement remote for the dac v1?