Many addresses to this issue have cleaned drains removed water soaked sponges under carpeting , replaced the amplifier and on it goes I noticed there is a rubber flexible hose , 3/4 inch travels down the foot well behind all the padding. Any idea as to what this is?

 

I believe that it’s the air intake for the small fan located at the bottom of the box that houses the ECU,BCM and relay. Water is not supposed to be in that hose

i believe the fan that is attached to it is beneath the relay module
I’ve included an image that shows the hose. Are we looking at the frame thing?

 

Forget that hose, your water came out of the heater fan duct. Clean that drain and check the other three drains under the cowl.