I have a 2000 Grand Cherokee with the Infinity system and the front tweets were blown. I decided to check out the db351's to see if they would work as replacements and boy what an improvement. They come with their own bass blocker(which was used and needed since that is the reason that the original speakers blew) and just barely fit. It helps to keep a stock look but with better than stock sound. They are still powered on the factory amp and I am sure would sound better with more power, but for the time being they are a wonderful upgrade. Just wanted to let you know in case someone was either considering getting these or had the same vehicle and issues(because if you have a 1999-2004 Grand, you have these issues).