I have that very same Aiwa unit, I believe. Only complaint: the way the damned thing is mounted in my Accord I can't read the LCD. You have that problem too?
It is the cheaper model. Only thing on the display is the clock and radio station and I don't have any problems seeing it. It's pretty open in a jeep. I can't complain for $115 with Aux in....
I had a non-mp3 version similar to that. I have a Cherokee and the thing was so damn bright that it messed with my night vision. Two weeks after I got it the *****er was stolen anyway, so who cares?