http://www.garmin.com/products/gpsmap496/

I asked for this one for Christmas, but it didn't end up in my stocking.
It would have fit, too!
I would have happily transfered my XM Radio account to this unit.

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85' 300D No inspection, No registration fees, Cheap insurance
"If my calculations are correct, when this baby hits 88 miles per hour, you're going to see some serious %$&^."