Amazon.com: DS18 SB12A 12 Inches Shallow Subwoofer Enclosure with Built in Amplifier – Car Audio All in One Amplifier and Subwoofer Bass Package 700 Watts Power – Great Stealth Car Subwoofer in
Chevy Silverado Single Cab 10" Dual Sealed Shallow Sub Box Subwoofer Enclosure | eBay