Classic Auto Air in 67 Barracuda Factory Non AC

So I think I posted this earlier in this thread. I tried to put the hose above the brackets and when I turned on the windshield wipers the arms grabbed the hose and pulled it back and forth - the unexpected issue was the hose pulling on wires under the dash and shutting off half of the power in the car whenever I turned on the wipers (in the rain, while driving down the road - EEEEKKK!!!!).

I'm hoping that solution #2 works - the pvc would be smooth and smaller so there wouldn't be anything for the arms to grab on...