My phatbox is only a month old and I love it. I have a problem that phatnoise says they think is a problem with the car. Whenever the phatbox is in use, there is a high pitched whine you can hear in the quite parts of songs and when it is announcing playlists. It does get louder and quiter with the volume control. It started to happen a week or so ago so it has not always done this. When the symphony radio is on cd or am/fm I do not here the whine. Anyone else experience this or have any suggestions.

Jeff

 

possibly need a ground loop isolator?

 

I bet your right, I'll look into the ground route. thanks.

Jeff