Used the Polk Audio flush mount which after a little sanding was a press fit.
What Polk Audio Tweets do you have? I cant find any 2ohm seperate tweeters for my bike. I was going to drill 2 holes almost in the same spot the Hog Pod ones end up and flush mount them.
I upgraded my Speakers to the Polk Audio DB 5 1/4" with separate Tweeters. I got them off Amazon for $109.00.
The mirrors are Arlen Ness Mini Ovals. I have another idea for mounting these other than on the bars. I have to see if it works and I will post. It will be a couple of weeks due to work.
Very nice mod, i just installed my fairing mirrors last week and now I know what I can do if I ever want to remove them. you sure do get a lot of good ideas from this forum that is for sure. Ride safe