Does anyone know what upgrades/differences are in the 2005 model vs. 2006. The obvious is appearance. If you have time could you also give me the difference between the 2004 vs. 2005 model. One change I know is the steering wheel button lights. The 2005 have them as the 2004 did not. One of the things I noticed was the glove compartment light. If you ever have your head lights on - your glove compartment light will be on regardless if it is open or closed.