Hi Jeff,
Check
http://www.saturnfans.com/
I own a 2003 ION3, and wish I had waited for the 2004 to get the better
sound system (and the standard CD player in the 2004s plays MP3s). Some
people have complained about steering and auto gearbox issues, noisy fuel
pump, and also about water leakage in heavy rain.
The 2004s do not have (AFAIK) the same steering, gearbox, and fuel pump
issues as the factory has improved these items. Rain leakage seems to affect
only a few people (not me).
My ION3 does not seem to have any steering or gearbox problems, and the
noisy fuel pump is being replaced under warranty. BTW my car is only 3wks
old. The car is enjoyable to drive, and is very peppy, having a 140 HP
engine.
Some people do not like the small steering wheel or the instrument cluster
being in the centre. Its fine with me.
I would buy another ION.