I have an AVIC-D3 unit (2007) with the brake bypass installed. I recently bought the Pioneer CNDV-90T Map upgrade USA/Canada (original no copy, bought from Amazon.com) Directions seem to admonish update may fail on a unit where the bypass has been done.

Before I make a mess, I'd like to know. If there is still an Arkansan named installermac, I would probably visit him and pay to have the update installed.

But will attempt myself with good advice. I mainly don't want to mess up what I have, for newer maps, if what I do messes up the now properly functioning with bypass installed.

I have a d3 with the bypass done. I downloaded the update dvd and just stuck it in the drive. Updated with no problems.

I have a d3 with the bypass done. I downloaded the update dvd and just stuck it in the drive. Updated with no problems.

Did you install the 2009 or the 2010 maps? My AVIC still has the original maps, from 2006 I believe. Would love to update the GPS, but don't want to lose use of the bypass. Thanks much!

Did you install the 2009 or the 2010 maps? My AVIC still has the original maps, from 2006 I believe. Would love to update the GPS, but don't want to lose use of the bypass. Thanks much!

+2 here.

Exact same boat.

What does one get with the update other than newer streets and updated locations..?

-Nigel