I was using a steering stem mount, with a RAM ball, for my GoPro. But since my AIM lap timer has taken up that spot, I made this little setup.
It's a piece of aluminum plate, two aluminum rods (
McMaster-Carr part # 94669A154) and two M6x1.00 15mm long bolts.
The plate is a little large as I made it to take a stick on GoPro mount, but the GoPro mount clip rattled a bit in the mount. I had this aluminum GoPro mount that I screwed in from underneath the plate with a 1/4" 20, 1/2" bolt (standard tripod camera mount).
For the hollow rod, I drilled the hole a little bigger with a 13/64" drill and tapped both ends with a M6 x 1.00 tap. I removed the two little black cap bolts that hold the plastic piece around the ignition key and drilled the black plastic holes out to 10mm from 9mm. The rods screw onto the two studs where the black cap screws went. I used some loctite.
If the mount works well, this weekend at COTA, I'll trim the plate down to the size of the red anodized part.