Upgrades 500W Dedicated Subwoofer Amplifier & Subwoofer Upgrade Options (NEW!!) $499.00 – $1,098.00 - Deadening: Bulk (19.5 sq ft) $199.00 - Deadening: Speaker Kit $29.00 – $89.00 - Don’t see your vehicle listed? Let us know the make/model of the vehicle
