OT - Heated grips, for the 1xx0 KTM model - and also for 890 ADV, I believe - are controlled by the on-board instrument via the menus. I believe that the same is for the Norden.
This means that any heated grip, linked at the plug under the front light, can be driven by menus.
I use a standard Oxford for my KTM 1050 and 1090, coupling positive and negative coming from the grips to the two poles of the connector.
There's a little problem with the support of the grip, KTM hasn't a smooth surface, but a pattern of rises that fit the inner side of the grip. You have to smooth the rises to insert the heated grip.