After I got my '67 CE23 in 1981, one of the things I wanted for it was an AM/FM radio, but in '67 the only upgrade was to AM/FM mono or search tuner. 1968 was the first year for AM/FM Multiplex. The existing AM radio worked pretty good, but no rear speaker, which is how I left it. In the later 1980s, I was at Mopar Nats and found one laying on a table. I tried to NOT seem overly interested, but did stop and talk to the seller. He had the dash unit, the needed center surround bezel, AND the rear multiplex box w/cable going to it. I had some cash and we made a deal. The "find of the century", I thought.
SO, if you're buying am AM/FM "stereo" radio, unless you have the rear box and cable, all it'll be is AM/FM if it has the "retained plug" in the RCA connector plug on the rear of the radio. That's how Delco did it, so I suspect Delco built these for Chrysler (to Chrysler specs), as Delco built the search tuner radios for Chrysler, too.
On the center surround molding, the outer "veneer" type piece is unique to the trim of the vehicle. Newport, 300, New Yorker, so you'll need to refinish that to match the rest of things. The "cable to the back" is a sheathed multi-wire cable. "The Box" mounts over the rear axle, I believe, so the cable runs down the rocker panel, behind the trim, then behind the seats to the place it's mounted to on the floorpan. And that's JUST the radio chassis and what makes it Multiplex. The speakers come next! The front center 4x10 and the outer surface-mount 3.5" speakers. The rear speakers and fader would be easy, after that, I suspect.
I did dummy it up one night, using some factory install kits I had, to get the speakers and wiring out of, and it did work. So seeing it would take more to get it in there than I wanted to do that night, I put it all back in the box I had it in and it went back onto the shelf.
When we were at Mopar Nats that year, we all exchanged notes on what the others in our North Loop Dodge Performance Team group were looking for. I found what I was looking for and NOT expecting to find. When I was carrying it back to "base camp", I had the radio in one hand, the multiplex box in the other hand, with the cables/wiring dangling. I was accused of having "The innards of a C-body dash in my arms". One of the more memorable moments of the trip! Others were looking for NOS or good used HEMI or 6-Pack stuff. I did manage to get my stuff stuffed into my suitcase.
That was the second year we'd been up there on "shopping trips". Many more took place! A good reason to "Get out of town" and get my "Mopar battery" recharged each year.
Let me get the website for Aurora Designs.
CBODY67