'01 Chirping Sound

[MattAK]

Hey guys. I'm just looking for some opinions on this chirping coming from my drivetrain. It's independent of engine speed or which gear I'm running in. It gets louder the faster I go. Also get louder when I'm applying power, goes down when just coasting. I got it lubed after taking this video and that helped a bit but it's still there. I'm thinking I need to replace the u joints, but any other ideas would be appreciated.

http://www.youtube.com/watch?v=TTOQxSnjHmA