Radio antenna

The antenna mount change on the E bodies is very likely due to RFI/ EMI as mentioned. Someone said the antenna does not need to be grounded. That may not be true, as this is a coax feed and it is carried out to the mounting point. That may or may not affect performance.

Frankly, with the state of AM/FM radio, especially around here, I'd just be sure to have a device with a memory card slot, and record some tunes on there and go with it.