QuestionQUESTION: I have hooked up 3 different stereos with the same result. I have checked my wiring several times with a multimeter and test light. I am very confident everything is hooked up correctly. The RPM's do not matter. I rev it up in park and have no problems. When I drive over 55-65 it's like you turn the power off and can not turn it back on until you almost stop. It does not blow fuses or burn anything. It's quite an aggravation. Can you help me?
ANSWER: Hi Charlie,
This is one of the weirdest issues I've ever heard of in my life.
If you drive around in the city for a really long time and never get up to 55mph, it keeps working?
If that's the case, you might want to check with a mechanic. See if there's anything special that occurs in your car around 55mph. Chances are, somewhere in your car, something's cross-wired and there's a voltage change going on or something that's causing it to turn off.
Does anything else electrical in the car act funny? That might be your first thing to try.
Justin
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QUESTION: You are right about it being wierd. One of my buddys thnks I'm joking. I have done some further testing and you are right about the vltage change. I held a multimeter on it yesterday while driving. At 60MPH it jumped from 13.56 to 14.09 volts. At 14.09 it cut off. All other components that run on the radio fuse continue to work properly. It does not matter time or distance the radio keeps working until you hit 55-60. Thhankyou very much for looking into this.
AnswerHi Charlie,
Ah ha! Most decks are configured to cut out at about 13.6V which you're already dangerously close to when under 60mph. It's probably because your alternator is outputting a bit more voltage than it'd like. Your battery might be overcharged aswell... check it for swelling and replace if that's the case.
Other than that, I'm not even sure what to tell you -- you might need some sort of electronic device to regulate the voltage down closer to the mid-high 12s.
Justin
