Super project ...
what about taking new iphone -- mounting or hiding it ... there probably will be software to mimic old-style knob
it is ipod
it has internet so you can stream FM/AM as you wish
it is small
then add NXT flat speaker technology ... put it underneath headliner or wherever you like
TVR uses these ...
Designed to save space and weight without compromising on performance, the Mini-AFR units are paired with a subwoofer (two in certain vehicle configurations) to create a sound field previously unheard of in a TVR. Because of the very limited space within the Tuscan 2, the speakers had to be tucked away under a shelf – only possible because of the slim depth of the AFR. Conventional speakers simply would not fit. It was a similar case for the T350 and the Sagaris, where the speakers are positioned low in the door panels.Aware that most TVR owners would want to listen to the car’s legendary engine growl, TVR designers wanted an audio system that was discreet and unobtrusive, yet able to play clear, loud sound at high speeds (i.e. typical motorway use) that simply wasn’t possible with conventional loudspeakers. With NXT, they found the solution.