Hi, I have a pioneer super tuner 3 in my truck and two days ago it started beeping every few minutes. At 1st it sounded like when your smoke detector batteries are low, a quick high pitched beep, and now it's gotten louder and longer. It even does it when it's turned off. Any help would be great. It's driving me nuts! Thanks :)

Are you sure it's from the tuner, and not some other alarm in your truck?

Daniel