I have a 2005 Enthuisast AT base,

I have a big empty spot where i assume a Navigation system would sit, could any one give me some navigation system names so i may research them or tell me wich they think is the best.

 

do you want a portable nav system?
if so i just got a Navman iCN 510 yesturday. i like it alot,very helpfull.

http://www.newegg.com/product/Produc...Car+Navigation

 

Someone is selling an Alpine nav system in the private classified for $850 shipped. This is an awesome price and Alpine is probally the best. You will still need to buy some sort of monitor. Either a in-dash flip up or on that fits in the factory spot. I have this nav system and love it

 

actualy i see no reason why the navigation cant be portable, ill check out both suggestions

 

If you want the best in portable GPS, buy a Garmin. Not just my opinion, check out reviews.

Here is the install of my Garmin 2610 in my '05 Enthusiast. It fits PERFECT.

https://my350z.com/forum/audio-and-video/115725-gps-install-complete-garmin-2610-a.html

The best place to buy Garmin online is http://www.gpsnow.com

For GPS reviews, goto http://www.gpsinformation.net

Good luck with your decision.