Steve, first let me say it looks great. The open air boxes really suck at output.....lol. I had a jeep wrangler back in the day, that didn't have a/c so the top was off 90% of the summer. Down side was there was no bass with the normal box. The best thing I came up with that worked and gave decent bass with it all open, was a down firing box that had ports out the top. Dunno if it's possible here, but just thought I'd share what worked for me.