Can't locate 377 relay???

[crosbyvalet]

Hi, my replacement relay has arrived wiper relay 377. I'm swapping it for the rain sensor relay on my 51 tdi sport passat.(no gel in replacement windscreen sensor etc,plus I much prefer being able to control the intermittent wipe..)

I can't seem to locate were the relays are located? can anyone help or post pics?

Many thanks

Pete