Want to update TomTom XXL with new North America Maps

Where would I find a new North America map and how would I go about doing it? Would USA_Canada_and_Mexico_P_900_4613 with Automatic Installer & Patcher work for the XXL?

Thanks

Check the instructions in the map threads and tutorials please, there is no need for a personal set of instructions.
Installer maps not always conatin the latest meta.txt and sometimes you still need to activate manually.