Thank you everybody for the useful replies. You guys are great.
I did have the AI removed at the dealer. I understand that gives me a good spot to mount the relay but I get to it only by removing the tank. Hmmmm. I'm no handy man...
The picture shows the horn and the relay in front of the oil radiator. Is that a good idea? I thought that putting anything in front of the radiator will easily add degrees to the oil temperature -- I've heard that relocating the stock horn, for example, is a good idea for it obstructs the radiator somewhat.
What other location can be used, in for a penny in for a pound...
Thanks again.