I'm a new-bie, but looking to see if anyone has experience with installing the new AVIC Z150 in a Tacoma Pickup.  There are postings here about bypassing the interlock for NAV/DVD.  Anyone have experience with maintaining steering wheel controls on the Toyota.  Axxess with a wiring harnass?  How about fit in double DIN slot?  Anyone found a way to use the built-in microphone for telephone rather than the external microphone?  How about routing the GPS antenna to the dash?  Thanks!