Where can I get Metra 4x10 to 6x9 adapter plates?

[325DR]

I want to put a set of 6x9's in my car. I had bought a pair of Pioneer 6x9's and the adapter plates from Circuit City (the blue plastic ones) and they didnt fit. I have heard that the Metra's work the best, but cant find a link to them. Where can I get them?

BTW, I am going to buy different 6x9's with a smaller magnet so they will fit under the torsion bars...

 

[Evans Ward]

Best Buy has 'em. They have very cheesey aluminum straps to secure speakers. Ask me how I know.....