Google SketchUp for modeling parts?
 

I just downloaded Google SketchUp so I can try and create some technical drawings and maybe have some professional millwork done for my stereo install.

I have the templates for installing tweeters in the factory locations on the dashboard of the 1st generation xB, and I modified them further to be able to hold 4" mids, but once I tried fitting the ring into the opening in the plastic, I had to do a lot of trimming to make it fit and the mounting tabs to actually sit where they need to.

Is anybody good with the program, in case I need some assistance?

As an alternative to that, does anybody have the dimensions of the plastic openings under the grills? I need the baffles to be perfect before I pay somebody to mill them out of steel or aluminum.

Thanks.

Bump