Bizarre FM Radio Problem with 2007

I have a bizarre FM Radio problem in my 2007 Prius. This car has:

• 6 CD changer
• No navigation
• No Bluetooth Phone.

When I turn on the audio the following modes always work:

• AM Radio
• In Dash CD
• 6 CD Changer
• Auxiliary Input

Usually the FM Radio works but sometimes it doesn't. If I switch modes sometimes I switch back to FM and there is no sound. Sometimes when I start the car with FM mode active there is no sound. Most of the time if I switch to the 6 CD Changer and back to FM the FM audio comes back - but not always.

This has gone on since I purchased the car 5 years ago.

Anybody else encounter this behavior from their Prius?

 

Fair enough but consider the question in the following light:

If this problem has been experienced by others who were able to diagnose the problem as a common defect in the head unit then replacing the head unit with another head unit that may also exhibit the same problem would be a useless expenditure. If this problem exists due to the configuration of components then replacing the head unit would be a useless expenditure. I could go on.

I could just assume any number of problems with the audio system and replace them all if time and money were in cheap supply.

Which brings us to the reason why people congregate in a forum in which they share their common experiences - to give and receive information they singularly do not have.

 

I'll probably wait a reasonable amount of time and move on like other people on here who do not find resolutions to their problems. If I end up replacing the head unit with one from another vehicle I'll return and post the results back to the forum in case someone else happens by with the same problem to solve.