M3 V1 Install w/ CF roof

So, I just picked up the new M3 coupe on Friday and have already begun to have fun. I looked at the post from Tim330 on V1 DIY, however, my M3 has the carbon fiber roof. Turns out that there are no bolts to which you can mount the ground wire. There are holes in the sheet metal, but after a couple hours at Lowe's I gave up on finding a bolt that would fit. Has anyone else run into this problem yet? So far I have come up with a couple possible solutions:

A. Remove the stock prong thing for the ground wire put a tap on, and just tap into a ground wire.

B. Sand off an area of the metal that is present and just use conductive epoxy or some other type of adhesive to attach the prong right to the metal.

C. Just get a metal screw, and drill it right into the metal.

If anyone has any suggestions or easier/more elegant solutions, feel free to send them my way. Thanks.

Well, I vote for "A" sounds like a cleaner installation. Sanding painted metal sounds scary.

Well,I ended up going with C. It was actually super easy. Went to Lowe's bought a short sheet metal screw, drilled a small hole, and screwed it in with a screw driver. Working just fine now :-)

Post up some pictures when you get a chance!