Car Audio in Early-A bodies?

I think the factory dash speaker is a 5"X7"-but leave it hooked up to the factory AM radio (they work better that todays am radios). Put a nice pair of 6X9 in the rear deck shelf. If you want to hide the modern stereo use a remote head mounted on a locking hinge so it will flip down from under the dash. And then you can flip it back up so it is out of the way. To me a remote control for a radio that is only a foot away is just wrong.