Hopefully there isn't another thread on this I didn't see. Our 2008 Acaida SLT has a navigation/DVD/radio and has been great until eight weeks ago. The radio cuts in and out no matter if its on AM, FM, or XM. We are in the same terrain as we have been before and have had no problems until now. The power to the radio never goes off, but it does pop, and fizzle in and out. This also affects our door chime, and when we open the rear hatch. I have also noticed that when the car is shut down completely we still hear an intermittant pop from the speakers. We really like our Acadia and would like to have our radio back!!!