I have ordered used center panel twice from 'wrecker lots'. the tend to ripe stuff out then claim its all there.
So ask for a pic of what they are REALLY sending.
You know by now, the 'radio' is the thing in the consol right abouve the ash tray. 02 had a tqpe deck front, 03 had a cd front. Of course you want all the wires out to the plugs not cut. And you of course want the screen AND all the harness.
go tp the fsm and pull up the radio section. send them the pages circling what you are expexting
But the simple answer is yes, it should fit.
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update!!!!!
2003 bose nav
http://www.nicoclub.com/FSM/Q45/2003_Q4 ... Q45/av.pdf
pg 37
looks like the audio unit (radio- head) is in the glove box w/ tape player!!!!
looks like the just moved the 02 unit into the glove box
then the cd player is just that, only a cd player.
then the nav unit is in the trunck below the amp
note: that is not a 'bass' amp as many here have stated. That amp is for the entire speaker system all 8 or 11 what ever. you can tell because all the speaker line run uot the back of it.
There is no sub-amp.
I still think the 'sreen might fit' because you have the nav system in the o2?