not a monsoon radio

I am replacing my factory radio in my 2004 gp. It does not say monsoon on it anywhere, and my car does not have onstar. will this wiring harness work for my applaction ?
http://www.crutchfield.com/S-27WPLlyrODC/cgi-bin/prodview.asp?i=120GMRC01

sory if this topic was already posted , all information i could find was on monsoon and onstar gp's

i also plan on getting this dash kit
http://www.crutchfield.com/S-27WPLlyrODC/cgi-bin/prodview.asp?i=120993527

any advice would be great, please post.

Both of these items should fit your vehichle. You should be good to go!

thanks for your post..... i should be getting the wiring harness and dash kit this week.