Upgrade to a GPS Nav stereo?
 

Have any of you replaced your Becker with one of the new GPS Navigation systems? If so, which brand and model and how have you found it?

A while ago, a Pioneer AVIC-N1 seemed to be pretty snazzy, but I haven't looked into it for over 6 months and things may have changed.

Related to this, since some of the Nav units are "Double-DIN" stereos, will the 986 take a double-DIN unit? Above the CDR-220 that I have in my 2001, I have the (in)famous cupholders that I could live without, so maybe it's a double-DIN if I sacrifice those? (fingers crossed)