Stock headunit questions

[NJ04HOE]

A co-worker of mine has been asking me for some time now to sell him my stock headunit from my tahoe (04) so he could use it in his 2000 silverado and I bought this on ebay http://jbrlsr.com/?aid=5336311247&bid=3484884&url=http%3A%2F%2Fcgi.ebay.com%2Febaymotors%2F2003-CHEVY-SILVERADO-RADIO-DASH-CAGE-DOUBLE-DIN-04-05_W0QQitemZ170368174103QQcmdZViewItemQQptZCar_Aud io_Video%3Fhash%3Ditem27aabc0817%26_trksid%3Dp3911 .c0.m14
because I know that the 00's are not DD and I have been trying to explain it to him for months now but he wants the 6-disk changer.
So what I want to know is besides the fit will my radio work in a 00 silverado without any issues?
Thanks for any help

[JKmotorsports]

Won't work. The 03+ radios turn on via databus, not your typical +12vdc signal.

[NJ04HOE]

I thought so I just wanted to make sure, thanks for the quick response.
Oh well he'll be pissed to find that out but I have been trying to tell him for months now.

[tast101]

You could look at the wiring diagrams to see if there are any differences:
http://www.the12volt.com/installbay/vehiclewiring/1/yeard/Chevrolet.html

Nevermind, JK gotcha.