I own a 04 TB with standard 6 speaker stereo. I replaced the four door speakers with Jensens at about $50.00 a pair. Huge differance. The OEM front speakers have a seaprate tweeter the rears do not. By replacing the four door speakers and leaving the front dash tweeters the entire system sounds 100% better. I reccomend it! The whole job took less than an hour.

Do you have to take the whole door panel off, or do the speaker grills come off independantly?

The whole door panel must come off.

I would like to know what model # Jensen speakers did you use in your 04' TB?

KFC-1689IE It has been a great low cost upgrade. No strong base, but no sub woofer either.