PowerStage
| Model # | Product Description |
| PSIEXT07 | KICKER® PowerStage™ Multi-Channel Amplifier & Powered Subwoofer Upgrade Kit for 2007 & newer GMC Sierra Extended Cab with base audio. *Powered subwoofer is not compatible with a 2007 Classic (2006 Body Style). Subwoofer is not compatible with trucks that have a solid rear bench style seat without modifications and additional parts (not supplied). Please contact Technical Support for the additional information. Multi-channel amplifier is not compatible with vehicles that have Bose factory premium audio systems. Multi-channel amplifier is not compatible with vehicles that have adjustable pedals. |
| PSICRE07 | KICKER® PowerStage™ Multi-Channel Amplifier & Powered Subwoofer Upgrade Kit for 2007 & newer GMC Sierra Crew Cab with base audio. *Powered subwoofer is not compatible with a 2007 Classic (2006 Body Style). Multi-channel amplifier is not compatible with vehicles that have Bose factory premium audio systems. Multi-channel amplifier is not compatible with vehicles that have adjustable pedals. |
SubStage
| Model # | Product Description |
| SSIEXT07 | Powered Subwoofer Upgrade System for 2007 & newer GMC Sierra Extended Cab. |
| SSICRE07 | Powered Subwoofer Upgrade System for 2007 & newer GMC Sierra Crew Cab. |
