Is there anyway to get the NAV or even bluetooth on my 2008 Prius Touring when it did not come with such? I mean, does the factory or anywhere have such an upgrade that somehow would allow these buttons to be shown and work? I bought my Prius used with only 3434 miles on it, but since it was a rental car the rental car company never ordered this when they ordered the car. I am hoping there is an easy way to get these and other things by just buying an upgrade or something.

Thank you,
Michael