just changed the fuse box on my mk1 gti, and just noticed that my lights are opposite
the dip is main and the main is dip
are the wires for the lights connected to the fuse box in that bank of spade connectors on the back (there are 10 all together)
my phone rang as i was swapping those over, and i may have got them mixed up
not all jumbled up, just got the top on the bottom and the bottom on the top, if you know what i mean