has anyone ever taken apart their p920 unit to see if the only thing missingbetween these two is the connector, i was thinking tonight that alot of times companies just dont include a connector but its the same inside, just wondering if you could "upgrade" a p920xm unit. probably not in this case but figured maybe some has taken one apart. i would check mine but it take about 30 mins to get out. I looked for some schematics online but found nothing.

it's not just a missing connector. There's a few differences between the two boards. A couple of us were really bored at work one day.

cool thanks

The 10 has NavTraffic function, and the 20 does not.

well i took both of them apart, and they are the same board. I found theres some small tiny electronics and the plug is missing, but other than that they are the same.