Sounds like AM radio with 8 track player, which would have been mounted on the console. This is the same setup I have. Here is a wiring diagram which may answer your questions.
Andy
Console-mounted 8-track players and multiplex stereo players in 1968 and 1969 Camaros were for cars with RPO C60 factory air conditioning systems (Four Seasons) because the AC duct work under the dash on the passenger side obstructed mounting either the 8-track player or multiplex there.
To rephrase slightly for clarification. U57 Console mounted 8 track tape players were used with console cars, regardless of AC. From the sales album for U57 in the revision guide, "Includes 4 speakers. Console required when air conditioning is ordered." So if you order C60 and U57, you also had to order D55 console.
And an interesting side note. In the original section of the sales manual, "Includes 4 speakers. Not available when electric clock is ordered. Console is required when air conditioning is ordered." I don't know how U35 Electric Clock would affect a tape player. But I guess that may be why they removed that in the revision.
