So, I installed my supertone horns. I'm using the included relay for a "cleaner" amount of power to the horns. As per "good practices", I fused the 12v source as close as possible to the battery terminal. I first tried a 5v fuse. I promptly blew it by laying on the horn. I tried a 10 amp fuse, blew it fairly quick too (although it lasted longer). Just wondering what fuse amperage I should be putting in here, and trying to determine whether I've got another problem. I have a fluke multimeter that can measure amperage (tried placing it into the fuse holder, and held down the horn, didn't measure anything).
So, my 2 questions (repeated sort of)
How do I measure the amperage of the two horns using a fluke series 73 III multimeter
What amperage draw should I expect from the horns?