Controlling the number of sounds in a TourGuide

 

I have nuvi 350, and am using a TourGuide .csv for McDonalds. I have selected the option "prompted".
What I expected was a red banner indicating a store was in the area, what I am getting is 5 loud bongs along with the red banner.

Perhaps I missed understood what the option "prompted" means. Clarification would be appreciated as well as help to stop the "bongs" or limit them to one.

With appreciation

John