70-74 E-body rear defogger question

[70/6chall]

Some information here gang if you please.beings that we are all shut ins collectively, I've taken more time to weed through the dark recesses of the garage. In a box I pulled out some things I haven't seen in awhile and at the bottom of the box I found a rear window defogger. All the pieces present except the black "drier" hose. But, it also has the second speaker adapter housing. I read in a post sometime back that this part was a hard item to come by,is this true? I believe I picked these parts up years ago in hopes of putting in a rear defogger set-up and use 2 rear 6x9 speakers in the package tray. Not sure if I'll go in this direction anymore. Any info offered will help.
Thanks Mopar gang.   Al

[anlauto]

Reproductions are available now wich brought the value of originals down, but it's like still worth $100 or so 

[7212Mopar]

Reproduction one cost over $200. I bought one from CI few years ago. My car has factory rear defroster but no rear speakers. I needed that to put 6x9s at the rear. There is a bracket to attach the housing to the deck and it is not reproduce. They are hard to find if you need one.

[Topcat]

Hoover has the hose immediately available.

https://www.ebay.com/itm/70-74-Mopar-Cuda-Challenger-Rear-Defroster-Hose/382915136603?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649