Pioneer G-series 6" x 9" 400-watt 3-way Coaxial Speakers in the Mobile Audio department at Lowes.com
Pioneer SPH-C10BT Single DIN Smartphone Multimedia Bluetooth USB Receiver Bundle Combo with 4x Clarion SE6934R 6x9" Multiaxial 3-Way 400W Car Audio Speakers, 16 Gauge 50 Feet Speaker Wire - Walmart.com
Amazon.com: PIONEER TS-A6976S A Series 6" X 9" 550 Watts Max 3-Way Car Speakers Pair with Carbon and Mica Reinforced Injection Molded Polypropylene (IMPP) Cone Construction : Electronics
4x Pioneer TS-R6951S 6x9" 3-way Full Range 800W Total 50W RMS Car Speakers | eBay