Amazon.com: REAMTOP 6.5" Aftermarket Plastic Black Speaker Adapter. Fitted For Toyota Avalon, Corolla, Highlander, Prius, RAV, Solara, Tacoma, Venza, Yaris, Crown, Reiz, BYD F3 : Electronics
Scosche 6.5" Speaker Adapters (Pair) Black SAHD656 - Best Buy
Scosche SAU56 Convertible 5.25″ – 6.5″ Universal Speaker Adapter-Sold As A Pair – Volunteer Audio
Amazon.com: ASC 6+-Inch 6" 6.5" 6.75" or 6x9 Front Car Speaker Install Adapter and Tweeter Mount Bracket Plates w/Speaker Wire Connectors for Select GM GMC Vehicles- See Below for Compatible Vehicles :