I have a custom box for two 10's (downfiring) and it has a cutout on the top for an amp. It is mean to fit under the rear seat of an extended cab Sierra/Silverado. It is charcoal in color to match the same color as the dash. I paid $450 for the box about 5 1/2 months ago but willing to let it go for $150. Would prefer local people or people within 100 miles but willing to ship at buyers expense. let me know...