I have spent about 3 hrs going through the forum searching for this and cannot find anything. I will be getting a 2010 Ford F150 Extended cab truck this weekend. I have a few days off and would like to go ahead and build my subwoofer enclosure so it is ready to install.

Does anyone have any plans already made that I can purchase? I plan to install a single 10" sub and place it under the rear seat so space is tight to say the least.

And no I do not have any measurement yet, that is why I am asking for plans.