DD Audio DD-612E-D2 600 Series Redline 12" 800W Power Tuned Subwoofer grill cloth the SI4217 is the correct

the SI4217 is the correct standalone purchase

Uses factory mounting position — no brackets included or required

A single swivel adjusts in one plane

The ability to remove the whip and cover it with a protective cover (included in the pack) allows the whip to be taken off if not required

The Aerpro APHYUSB2 adaptor harness suits Kia Sorento & Carnival and some popular Hyundai models with factory USB support

DD Audio DD-612E-D2 600 Series Redline 12" 800W Power Tuned Subwoofer grill cloth the SI4217 is the correctGreat Entry Point For A Higher Performance System Design! 12" Power Tuned Subwoofer The 600 Series is a great entry point for a higher performance system design that keeps the vehicle as close to stock as possible. These subs will perform like a boss on as little as 300 600 Watts, meaning even multiple woofer systems can be driven with one moderate powered amplifier. This keeps electrical upgrades minimal with less added strain on the vehicle. With a