Can you connect a CD5 sim to my nova
What do you mean by CD5 sim? Sim as in a SIM card?
No sorry. Naim cd5si to my uniti nova.
Ah, that makes more sense. You can connect the CD player to the Nova using one of the two 5 pin Din sockets. You should already have a 5pin lead, with your CD player. You could also use the phono sockets, but Din is preferable.
If you do connect your CD5si to your Nova as Nigel suggests above, then you may find it will sound better with the Nova ground switch set to floating rather than set at default.
Thanks guys for the info.