05 Grand Prix Nav System

Hello I just purchased a factory navigation system for my 2005 grand prix and need to know do I need the monsoon system in my car for it to work? Is so is there a way around this? Since I do not have the monsoon sound system installed on my car.

Well, I've got an '01 GP GTP with just a little HP ipaq PDA as navigation. :cwm27: So I can't help ya, but you'll get a lot more answers at the GP forum at www.ClubGP.com

I'm not 100% sure but I dont think it's a good idea to post links to other forums on here. It should be in the rules and regulation...