Speaking of tack wiring . . . . . I am reassembling a Mk1 (which I didn’t tear down). The dash was out of the car and since the old wiring harness had gone through many mods I am using an new harness. For the tach wiring the old harness retained the plastic "wire loop" holder, but no sign of the "metal clip" mentioned in this thread. What does the clip look like, and can I just fabricate a replacement from some ferrous metal, or is it something "special?" The car is an interesting project. I had a Mk1A "wayback" but never delved into the underdash wiring.
Thanks
Bob in York