That guide helped me out tremendously as well. The only issue is that now the bass booms so hard I get a little rattle out of the sub sometimes. I have the coupe and that's usually an issue with the convertible. I only hear the issue when I really crank up the volume with heavy bass music.

 

If you haven't already looked, lots of information here about troubleshooting the rattle issues related to the sub. Im lucky, so far i don't have that issue with my vert.