Vacuum pump wiring question ?????

I do have a fuse on the positive wire for the pump,would this allow me to tap into the blue wire without hurting anything?

If not what kind of relay should I use,a part number would be awesome if you know.

Yes I believe the pump does have a switch to kick it back in when vacuum drops,which is why I'm worried about my booster.

Thanks,still trying to get my head around this a little bit,I hate electrical...