It says it's a "radio control cable condit". I'd guess it where the wiring went for a motorola two way radio for a police car. It is just a guess, but I had one of those radios in several of my cars in my early days of being a ham radio operater (and I still am) and it was a large cable full of little cables and went from a control head with microphone in the front of the car to the 23 tube radio transiver box in the trunk. It looks like it could work great for that any way!
I've been looking at that option for years and never knew what it was for.
I also suspected it was for some special kind of radio wiring or other electrical equipment.Never actually seen one.
I have a am/fm/cb in dash factory unit I got from a 78 Malibu.Most of it was in the trunk!Lots of wiring!
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