so the radio(stock) in my 87 760 has started an interesting new problem.

it cuts out for no reason i can detect, it's completely random as far as i can tell and it stays out for different periods of time. when the sound is out you can turn it up enough to hear it but you have to turn it WAY up to get normal sound and the sound is kinda 'hollow' sounding. and like i said it's completely random except one thing, it only comes back to normal when i think it is gone for good and turn up the volume, then just when i get comforable in trafic i get FULL volume. i need help fast i'm starting to flinch every time i even look at the radio