Ha, that google image was where my idea came from but can never get those images to open up on the actual page.
Already ripped out the stock amp and have everything installed. Just need to mount the HU with mybimmer bezel that just came in.

The idea of trimming the stock sub and adding in an 8" sounds cheaper and less complicated as far as wiring goes. Just run it off a mono amp. However, I also don't have exp with fiberglass but there's always a good time to start. Looks like you've begun doing it. Any complications thus far?

__________________