These brackets make it possible to install select 6"x9" speakers into the 4"x10" openings located in your vehicle.

  • Priced per pair

Includes Crutchfield's 30-Day Total Satisfaction Guarantee

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

GM SAPs Reviews

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Good Buy

Written By Curt, Manchester, NH on Wednesday, February 21, 2007

Crutchfield Customer Review (What's this?)

I bough these adapters for my 1988 Olds Cutlass. The brackets work great. They took some effort to get them in (the metal bars needed to be bent around the speaker), but overall it was worth it.

bad fit

Written By chevy_boy, houston,TX on Wednesday, January 03, 2007

I was told this product would make alpine 6x9s fit the 4x10 opening in my '85 monte carlo. however the torsion bars that hold the trunk lid open still cause a clearance problem. ive heard the same deal with all GM G bodies. cutlass,regals,etc.