Can we interchange these 2 systems from the 02 and 03 models?

thats 2 of the same pic - what systems are you referring to?

this one

if you are talking about the tail light - I explained in your other post - that you can get the 03 look in a pre-03 by purchasing a new set of two-tone lights - www.lskoncepts.com (http://www.lskoncepts.com/) (they are not interchangable - the inner trunk lid lamps a re smaller on the 03+, and the pre-03s had ridges on the outer surface)

I have the two-tones on my 01 (same a s a 02) - check out my pics in my signature.

sorry about that,
I posted this post not realizing i had it on another posting...i am going to drop this post and concentrate on the main one i have...