Polk Audio DXi650 6-1/2" 2-way car speakers — also fit 6-3/4" openings at Crutchfield
6-1/2" Car Speakers - Best Buy
Rockford Fosgate P1650 6.5" 2-Way Punch Coaxial Car Audio Speakers 110 Watt Max | eBay
DUAL CAR SPEAKERS 61/2 4 WAY SPEAKERS 300 WATTS DLS6540 for Sale in West Orange, NJ - OfferUp
Buyr.com | Coaxial Speakers | Kenwood KFC-1665S + KFC-6965S 6.5" 300W 2-Way Plus (2) 6x9 400W 3-Way Car Speakers
Best Buy: Clarion G Series 6-1/2" Coaxial Car Speakers with Polypropylene Cones (Pair) SRG1622R
Ford S-Max 06> Pioneer 17cm 2-Way Coaxial Speakers Front/Rear Door Speakers 600W | eBay
Amazon.com: LEIGESAUDIO Audio Systems Coaxial Car Speakers Stereo - 6.5 Inch Car Speaker with Good Bass for Car Truck Front Door, 360 Watts MAX of Per Pair and 180 Watts Each, 2