93celicaconv":2mntekp3 said:However, if you are looking to see if the original external CD-player that would have used that round plug connector on the back of your head unit triggers the head unit to switch, then I think it will work for your Bluetooth adaptation. I can see if the 1990 All-Trac electrical service manual I have provides a wiring diagram to show this as well.
Finland93celicaconv":1kj3lqun said:And what country is that?
93celicaconv":1s0ycsty said:I'll check if what I have in storage for the head unit is 86120-2B080 later this week. If it is, I'll send you a pic of the mating CD-player that came piggy-backed to this head unit. I'll also check with my son regarding its operation.
What I remember of these 2-piece systems is that the CD-player input to the head-unit activates the CD system (i.e.; a disc placed into the CD-player links the head unit input to be received from the CD-player, or pressing the play button on the CD-player that already had a disc in it links the head unit input to be received from the CD-player), and all functional controls of the CD reside in the CD-player as it has its own full set of control push-buttons on it.
So I think the answer to both of your questions is NO.
Why don't you get a 1-piece 2-DIN head unit instead of trying to use the radio you have? Such units have separate buttons you push to activate either the receiver, cassette player, or CD-player. It would have a single control system that links everything together. Plus those 1-piece 2-DIN head units are PLL synthesized to produce excellent output sound quality (provided you have the original or a good amp and speaker system).