AUTUT 6.5-inch Subwoofer Speaker ABS Spacers for Auto Car, 14mm Depth, 2Pcs

Fits well. Holes line up. Measured with caliper and dimensions are right.

They are durable, easy to use, a great value, and are truly universal with any 6.5" speaker. What I mean by durable is the screw holes dont strip out even after installing and removing them over and over again. They are forgiving and dont crack right away if you tighten the screw down a little tighter than you should. They also will flex a little so as to fit tightly all the way around the door panel even when the contact surface isnt completely flat. I cant say much about any other universal speaker spacers but I can say you won t be disappointed if you buy these ones.

These are universal spacers but the screw holes don't line up with my speakers. I bought Rockville model RMSTS65 6.5" speakers. The screw holes on my speakers are 1/4" wider than the spacer holes. Maybe Rockville does not use a common standard, or maybe the spacer is not. The spacer fits perfectly on the speaker cage. They are well made spacers and they are sturdy not flimsy and thin. Plenty of plastic thickness for strength. It appears that there was no consideration for differences in manufacturer specifications. There needs to be more plastic to thicken the surface where it mates to the speaker cage and be a bit larger in diameter. If so, I could have drilled my own speaker holes. Because it was not wide enough, there was not enough space to drill custom holes for my application. In 3 of my pictures I used the foam speaker seal as a reference for you to see that the holes lined up with the speaker. The last one shows the spacer and how the holes don't line up. Spacer screw holes are 6 1/4" center to center. The Rockville speaker has holes 6 1/2" center to center.

Used this on a 2004 Subaru Impreza, it uses an odd size speaker, about 6", so 6 1/2 won't fit in the old mount. You can use an adapter to put in a smaller 5.25 speaker but I would rather not downsize, so I got this and it worked great. With out the spacer a 6 1/2 speaker will hit the window frame when it rolls down.

So this product said that it fit my vehicle, but in theory it did. On the other hand it didn't. So my vehicle is a 09 acura tsx, the factory speakers were held in by one machine skrew and three clips. The the mounting bracket itself came with no additional hardware to complete the mounting process. Also the brackets themselves did not offer enough clearance for the new speakers magnets to allow the windows to go down. Sensing this would be a problem, I had to attach the mounting brackets that came with the alpine speakers that I was replacing my factory ones with. When it was all said and done. I was able to successfully mount my new speakers using the these brackets. With some quick thinking and a bit of resourcefulness, I completed the project by adding three self-tapping screws to the brackets. So if you are looking for an easier way to mount your new speaker using aftermarket mounting brackets, do a little research first. I'm lucky i work for a big box hardware store and have the resources to impervise.