Read an article once that said the double announcement is actually a proven method to cut down on missed stops. It works, hall.nora! The first one gets your attention, the second one makes sure you move.

Honestly that's a smart fix, but hose clamps can rust out pretty fast near the heat shield. Phoenix625 had the right idea with indoor plumbing stuff, that's way more permanent.

Watched my buddy's car hit 400k the same way.