The Polk Audio db651s speakers sound great, look like they are built to last, and were easy to install in my 2003 Chevy Silverado. The door-ajar chime also now works! The enclosed door panel removal instructions were helpful, and there are also several "You Tube" videos available that provide similar information in a more visual format. The GM compatible wiring harnesses proved to be very helpful, since no cutting, splicing or soldering was required. The Metra 82-3002 mounting brackets were also very helpful, since no drilling of the door panels was required. However, the Metra instructions only referenced 1995-1999 Chevrolet and GMC pick-up trucks, which caused me to confirm with Crutchfield that I received the correct speaker mounting brackets. Also, the instructions for the speaker mounting brackets have a diagram on the front page which shows two speaker mounting brackets which mirror each other (i.e. a left and a right). However, my sealed package from Metra included two speaker brackets which were exactly the same (i.e. two lefts, or two rights). If the two speaker mounting brackets had been mirror-image, no alterations would have been required. For this installation, to flush mount the speaker mounting bracket on the driver-side door, the removal of one large plastic tab from the right side of one bracket was required. The safest way, to avoid breaking the bracket, was to carefully cut off the plastic tab with a coping saw.
Pros: The Polk Audio db651s speakers sound great, look like they are built to last, and were easy to install in my 2003 Chevy Silverado.
Cons: The Metra 82-3002 speaker mounting brackets should include two brackets that mirror each other (i.e. one designed for the driver-side door, and one designed for the passenger-side door).