Unfortunately, there is no centralized location to look this up in..
maybe you can convince dd to start a spreadsheet or db of some sort
It's a bit more difficult than that, there are so many 1.8t variations out there.
Some are crossflashable but need a matching eeprom, etc.
Best bet, compare the bootrom, and try it.
Side note:
I don't condone crossflashing files for tuning purposes. I always use the correct file for the car, and I think everyone here should as well.