[QUOTE=LtDave;1475723]Convertable radios where you could unplug the portable from a holder on the dash to carry it while you were out of the car. On return, you reinstalled it in the holder and you had a functioning vehicle radio. We had ones made by RCA. Searched for a photo of the RCA vehicle mount but came up empty. Here is one that worked in a similar fashion to the RCA model:
Attachment 104310
We had the GE version and I was also unable to find a pic. Ours were big and heavy and you could change the battery by twisting it off the bottom of the radio. I heard of a few batteries that were unintentionally removed when a radio made contact with a suspect's head during a scuffle.