Fuses keep blowing!

[grubby]

I've got a 525 TDI SE Touring (European) & I have a problem where the headlight fuses keep blowing everytime I use the headlight flasher or try to use main beam.
I've tried fitting another indicator/flasher/main/dip selector but it didn't fix the problem. I also tried disconnecting the main beam headlights & trying the main beam, again to no avail.
I've read elsewhere on this site that the diesel doesn't have an LKM but uses relays instead, unfortunately what the post doesn't tell me is the locations of the relays & which is which.
Any help will be gratefully received as I'm pulling my hair out now. .

[grubby]

Bump!

[Jeff N.]

Gee...sounds like a short. (duh) I'd start isolating parts of the circuit and testing each segment to find out what's grounded. Sorry I don't have a better suggestion.