Hey, Team. I had zero luck searching for navigation differences between the 5.1 found in the '07 RX versus the previous (what's its name?!) gen nav in the '05 RX? Point me in the right direction because I'm not using the right search terms.

* Edit: Looks like I meant Gen5 8.1

 

It's not clear, to me at least, what you are asking. So i don't know how or if I can help.

 

What's the difference bewteen the nav on a '06 RX and a '07 RX?

 

I don't think anything other than a map dvd that is one year newer. The 08 and 09s have a gen5 hardware which has crisper cleaner displays and better voice response features. I don't think any of that was in an 07.

 

07 model was the first year for the higher rez screen

 

Actually 07 has the same gen5 hardware which has crisper cleaner display and better voice response features as 08 and 09s.

In 07 & up models you do not have the overide feature that was available upto 06 models which had the previous generation nav hardware.
This feature can be enable with a hybrid dvd or buying after market hookup which will allow you to input destinations while driving(Which is dangerous if done by a driver )

Gen 5 also has blue tooth