Yesterday while on my way home from work I started to hear a buzzing sound coming from the back of my car. It kind of sounds like feed back you get when you have an amp in your car, but I have no amp. The buzzing sound went away during acceleration, not excessive acceleration, but once the speed was consistent it came back. The sound went away about half way home. I went out later that evening, the sound was there again until I got home. I popped the trunk to find the sound coming from my KB BAP. When I turned the dial up the noise got louder. This morning I leave for work and it doesn't make any sound, but got into it a little bit to make sure it's still functioning properly and it was according the wideband. I called KB and they said they think that it maybe on it's way out, because it's wired up to run full time. My question is has anyone else ever had this problem and did they need a new BAP? Any info on this will be greatly appreciated. Thanks in advance.