Adding GPS after the fact

Get a good portable device. It would be cost prohibitive to try to add the NAV to a non-NAV package.

 

I have a Garmin 360. It works great and hides in my secret drawer with it's charging cable when not in use.

JeffD

 

Buy a Garmin Nuvi 300 series for $250 on sale online and be glad you are not stuck w/ Toyota's lousy, counterintuitive nav system.

 

someone here did get the actual prius gps here, for less then $800??? i dont remember, but this was the earlier model, and not the 2004-2009 series.

if you get traffic ---
dont get a msdn traffic receiver, they are lousy. stick to something like rds/tmc (clearchannel), tom tom traffic, dash express, etc

best advice - hang on to your 2006 and trade it in for a 2010, it will have a newer navi unit
and you will probably feel screwed by sticking with wanting a 2004-2009 navi

 

I was forced to buy the lousy Toyota nav system as I wanted [p]leather seats.

 

I bought my first GPS unit not long ago right before we bought the Prius. I looked at a lot of different units and decided to go against the norm and went for a Navigon 5100. I bought it because it had traffic alerts for free for the life of the unit. As for the functioning of the unit itself, it seems to be doing fine though it does tend to not like the side roads I often favor, guess that's a good thing now that I have a new car.