Exactly.

If the stuck mic was on a motorcycle in Dealey Plaza during the assassination and if that motorcycle accompanied the limousine to the hospital, we would hear the siren sounds start right after the assassination and continue for 3 to 4 minutes, all the way to the hospital.

If the stick mic was on a motorcycle or 3-wheeler that was in the Plaza to help with traffic in the Plaza, and did not accompany the limousine or motorcade to the hospital, we would hear no siren sounds, expect maybe faint ones fading away as the limousine left Dealey Plaza right after the assassination.

But for us to hear NO siren sounds during the stuck mic sequence, for about 3 minutes after the start of the drive to the hospital, after Chief Curry said, “Go to the hospital officers!”, then we hear several sirens passing the stuck microphone, that places the stuck microphone somewhere between the Trade Mart and the hospital.

Many people have driven the route to check the timing of the drive from first tunnel of the triple overpass to the hospital. A fast drive can take as little as about 3 minutes, if there is not much traffic, and a fast drive that gets caught in a little traffic can take as long as 4 minutes.

The siren sounds come up on Channel 1 about 3 minutes after the start of the drive to the hospital from the area of the first tunnel of the triple overpass at the end of the Plaza. That would place the stuck microphone somewhere between the Trade Mart and the hospital.