Static from radio when rear defroster is on on 2007 Chrysler Sebring

When the stereo is on and you turn on the rear defroster the radio gets static for about 5 or 6 minutes and then will clear up

Asked by for the 2007 Chrysler Sebring
Not sure if it will help, but there is a software update for radio problems, one is engine static. Maybe this will correct your noise, won't hurt to ask the dealer. Good Day