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These work great for the front speakers for a 07-13 gmc serria ext cab but search for the backdoor mounts they’re different from the front. They are more of a rectangle for the back. they will work with some self tapping screws but if you want to do it right look up the mounts for the back they’re right on eBay don’t make the same mistake I did and use the front mounts for all four speakers like I said it will work but it doesn’t fit as good.
Easy way to install aftermarket speakers. On my 07 sierra these fit the front door speaker openings perfect but the rear door openings are a little different and dont fit tight. Can use the tabs and a self tapping screw to secure.
Fit into my 07 Pontiac G6 Sedan just fine. Took away a star because the mounting holes are....... idk how to really explain them.... The hole layout is utterly retarded... The two adapters aren't symmetrical to eachother... So if you have speakers with a design or logo on them, and you want them to look nice in the car and be at the same angle, you can't. I'd have looooooved these if the holes were even all the way around, giving you the ability to mount your speakers in any rotation you desired, but they didn't... so now, speakers will always be at different angles from eachother, and depending on your speaker, that could be really bad... some have covers to protect them, or tweeters built into them that are offset some, so because of these mounting holes, you'll have a different 'sound' depending on where you're setting because of the cover blocking differently or the tweeters being angled differently..
Fits 2008 Impala door perfectly with modifications...
If you have 6.5 Alpines then break off all the tabs. All they do is get in the way and don't give the speaker an air tight fit. I was hoping the speaker would just fit right without doing any modifications, but I sort of expected that so I am not too upset about it.