I did this install today and it really looks good and is out of the way. I hate having a mess of wires or anything else in my car so much that I haven't even used my V1 since January when I got this car. I had been waiting to find a better way to install and running across this thread, almost accidentally, gave me what I was looking for. Thanks!
Oh, I used a different ground point. I will try to shot a photo to show where...no drilling is required this way.