I had a post on here about if anyone is using them and got some positive responses. they are german made aftermarkets that hook directly to factory plug ins.
Anyway they are AWESOME, easy install obviously just the snap but wow what a differnce, i can actually hear my radio with the top off

 

That's great! I've heard nothing but good things about Rainbow. Just wish the name wasn't so cheezy. Did you listen to these at a local shop before you ordered? What would you say they sound like? Warm (Boston, KEF), Neutral (B&W), or bright (Klipsh, Infinity)?