Is it worthy to buy?

[Ainio]

I'm looking at buying a auto DVD player GPS navigation for my Jeep WK Grand Cherokee. I have searched on google, and found one, not bad. It's my first GPS navigation, i have no idea whether is worthy to buy.Guys, give me some suggestions.
Here is the site: Jeep DVD GPS player (http://www.coocar.com/jeep-commander-compass-limited-grand-cherokee-patriot-car-gps-navigation-system-p-922.html)

[SteveC]

IMO - Too risky, ,don't waste your money paying for components you'll probably never use such as TV & DVD unless you need it for the kids in the back and then you need to wire it all up.
Get an AUSTRALIAN mapped gps system like well known Garmin, VMS or Hema etc.
They can be either standalone or can be built in the existing facia
Check their web site