instrument cluster

So my local U-Pull junk yard has a 03 2WD xterra in the yard. As I was scavenging some parts I noticed that the instrument cluster is a different color than my 04 XE xterra. This 2WD instrument cluster is all grey/black with white numerals, while mine is all white with black numerals. So, i...

Ok, so the instrument lights went out. Why can't I find replacement bulbs or the whole instrument cluster? My Xterra is an '03.