Placing it on that "bent edge" on the left side of the column support would make sense...

But then one must fix it there or it will sooner or later be smashed by the clutch pedal stop-cam. So was there some kind of clip when it was stock? Else one must drill a hole to fix it with a cable tie.

And to guide it there - will it pass the clutch pushrod on the left side... or shall I say "under" or "in front of" that pushrod?

@ricomondo: Sure that's for a rally dash? The speedo is on the left side of the column support... I'll take a look again but can't really visualize.

I've had it already in at least three different positions - and everytime it looked just odd... ...while lying on the back in the empty car for LONG, shaking head under the dash in disbelief, having just no more ideas...