Which map for TomTom XXL Classic 2GB

Hi,

I have a TomTom XXL classic IQ Edition, originally equipped with the "Western and Central Europe 2GB" map and running the NC 9.510.
I would like to update the map, but this map does not longer exist.
I've tried to install the "Western_Europe_980_7957" map, that I supose is the best option to replace my old map and keep at the same time the IQ routes capabilities, but surprisingly this map is to big to be installed in my device.

Could someone suggest me some way to be able to install this map?
If this map is not possible to be used, which other map can you suggest, keeping the at least the Western Europe coverage and the IQ rutes?

Thanks