Bill wrote:
Unfortunately, the 90 is different. A real ****-off... can't upgrade
to a '94 like you can if you have an '89. So buy a garmin instead!

I believe the 88 is different too. Different connector on '88.
I believe the lock is in a different place too.

Don't mean to be sending discouraging messages... Bill Hale


Thanks for the feedback... Its just a matter of knowing what my used
purchase options are before springing for new.

Dave