Stop in for a cup of coffee

And since we are taking Barracuda's a question for the brain trust.
Question concerning the interior heater vent hose.
Question is was there any sort of clamp that held them in place attached at the vent tube??
Mine were attached only at the two vents under the dash next to the heater box. At the top of the dash weren't attached at the vents.
I know why. They used an aftermarket 2" wide hose and but had a 2 1/2" opening on the vent tube at the dash. Wasn't coming close to covering the vent tube.
As usual thanks in advance for any input.
No clamps but the originals have a metal strap built int the end. Don't the vents and outlets have a tab for it to catch on?20190107_144940.jpg