1.How to Select the Right Car Speaker Spacers
Check the vehicle owner's manual: The speaker size is sometimes listed in the audio system or specifications section.
Online Lookup: Visit well-known North American car audio accessory websites, enter your vehicle details - year, make, model, trim level. The site will precisely list your factory speaker dimensions and recommend perfectly matching speakers and installation accessories.
Manual measurement: Remove the door panel and directly measure the diameter of the factory speaker ID and the mounting hole spacing are usually 165mm - 6.5" to 175mm - 6.9".

2.6x9 In Plastic Speaker Adapter Parameters

Vehicle Speaker Spacer Rings
Outside Diameter: 245mm - 9.63&187mm - 7.36 inches
Inside Diameter: 225mm - 8.86&150mm - 5.91 inches
Height: 5.5mm - 0.22 inches

3.How to Install
Screw the car speaker to the plastic adapter ring and screw it back on car's door or other mounting places that you need.
If you want a better sound effect, please purchase the extra speaker foam rings to seal.

4.What's in Package
2 x 6*9 Inch Plastic Speaker Spacer for Toyota