Install Aftermarket Speakers in 07-13 GM Truck - No Adapters Needed! - Silverado and Sierra
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This video will show you how to use the OEM speakers to make adapters to install aftermarket 6.5" speakers in the front doors of a 20072013 Chevy Silverado or GMC Sierra.
This same process can be used for the rear doors as well.
Also works on Chevrolet Cobalt as they use the same exact speakers.