All I can say is I haven't heard of anyone with an accurate nav yet.
Me personally. I'm str8 with a compass n my good sense of direction.
But if I had to choose? Id probably go with kenwood or alpine when it comes
To head units with nav or not. They both have a very good rep for quality.
Pioneer is more hit or miss. So if u go pioneer. Do your research b4 makin it final.

All I can say is I haven't heard of anyone with an accurate nav yet.
Me personally. I'm str8 with a compass n my good sense of direction.
But if I had to choose? Id probably go with kenwood or alpine when it comes
To head units with nav or not. They both have a very good rep for quality.
Pioneer is more hit or miss. So if u go pioneer. Do your research b4 makin it final.

I have installed both head units that are being discussed the kenwood in a 370Z and the pioneer in a subaru wrx sti. The bluetooth and mic on the pioneer were not top quality the people could not even hear use during the tests. ALSO pioneer wants you to take your dash apart to install another wire to get better accuracy for your speed. Not that you need to just something that rely dose not need to be done. The kenwood gets my vote for having everything you could need or want and also having very good GPS and bluetooth.

I have an Avic Z3 in my corvette. Its ok, but the bluetooth sucks on it also.

I like the looks of the Kenwood better and have played with one in another corvette, but I think I am going with the Pioneer in the Z only because I want to be able to move the sirius tuner from car to car instead of getting another subscription.

If you are talking about the plug and play modules you can still use that in the kenwood but you are going to have to buy a new subscription is it is the one dedicated to the head unit.