Gladen ONE-201-BMW 3-Way Drop-In System Semi-Active System (3 Ohm) Compatible with Select BMW - Creative Audio
Gladen RS 08 Extreme Subwoofer speakers 20 cm
Recoil SW10P Car Audio 10 Inch Active Subwoofer with Passive Radiator, Built-in 600W Amplifier, Include Remote Subwoofer Control and 8AWG Complete Wiring Kits - Walmart.com