I know it sucks
but there are not many things that anyone supports for a long time anymore
I think they came out in 2004 or around there
and in electronics till now that isn't so bad
I think in 2008 or 09 they had updated maps that would still work in your unit
and my garmin map76c is in the same boat,,,,, (or in this case truck) , I can't use the latest maps either.......it's still a damn fine unit