It turned out that through the mix and match of miata parts I’d collected thru the build I’d collected an American combination switch and steering column. Naturally these worked together well but the combo switch is not plug and play with the Canadian wiring harness I have. I had to look around and find both a Canadian combo switch and steering column to match one another and the wiring harness. Picked these up from a fellow in Tsawassen who has lots of miata parts. The Canadian column has a smaller diameter end at the combo switch which only fits the matching combo switch. Thought about adapting the American combo switch to the Canadian harness but it did not look trivial and would rather stick with stock wiring if possible.