i have an 04, and i would say the amount of air coming out is pretty bad compared to most other cars. My blend doors work, but not sure if I am missing the foam near the radio like someone else said. The passenger side just doesn't flow near as much as the driver side. My connection was going out too. I just cleaned up the contacts, bent them a little so it would have more pressure. It looked like it had shorted at one point, as the connector was kinda melted near the contacts inside it.
04 WJ, Limited, 4.7 HO, w/ lots of goodies
Incline Winch bumper from WWW.FRANTZDESIGNWORKS.COM