I really would like to keep the original radio in my 90 brougham. However it has a problem that is as annoying as hell. First there is a whine that you can distinctly hear that gets higher in pitch when you accelerate the car. Also when the car is warm or on a warm day the radio has constant ticking/thumping sound coming from it. I would think something new might solve these problems, but it's possible not too. I see used units on eBay which I wouldn't object to, but at $200+ for a used unit that possibly might have the same problems as the other units seems a little spendy. Any advice or ideas appreciated.