We bought a Garmin C340 GPS for the Sedona. It's fantastic...but it shows that the speedo on the Sedona is actually 3 MPH fast. If this seems like a big deal....we tried it in the Subaru Forester Turbo and it was 4 MPH slow. In my friend's Sienna, 4 MPH fast. My father has the same unit in his Subaru Tribeca...spot on. Anyone seeking GPS for a car, I highly reccomend the C340. It's been a great addition.
Robert B
2006 Sedona EX