Hi,

I'm curious to know if there are better and cheaper aftermarket Navigation system than the factory-installed units from Lexus?

If yes, where can I find them and how do I get them installed? Any recommendations?

Thanks

 

I don't know if you will find better and most are about the same price, but you could try the Pioneer AVIC-N1 or etc. I almost pulled the trigger on this one when I owned my 4RUnner.
CV

 

How would I know which model will fit in the slot?
Do you know what nav system that comes with GX470?

Thanks

 

Normally, if you have the unit professionally installed, they will fit it with the appropriate coverings and etc. I'm not certain what the name of the lexus unit is, but i am sure the dealer can tell you.

CV