Ok so i was driving home today and all of a sudden my stereo starts turning on and off all of a sudden. Likr every half minute or minute it turns off. So about five minutes later i notice that my gauges doent work well atleast my speedo and tach dont work thats all i really noticed. So i pull into a gas station and turn my car off and pop the hood to see if maybe something was loose or anything. So everything looks fine so i get back in my car and try to start it and it wont even turnover it just makes this ticking spinning kind of sound when i turn the key likemy battery is dead. So we jump my car off of my friends stang and it fires right up everything works fine gauges and stereo are all good. So i start driving to autozone and i get about half a mile and my stereo turns off again and then my gauges thenabout a mile later my car just turns off all the way and wont do anything when i turn the key now not even the clicking sound. So i sit there and try turn the key a few times but nothing happens but when i have my key turned to the on position something starts makeing a beep i took my face plate off the stereo and the beep continues. It beeps like 4 or 5 times then stops then does it again a few seconds later. My engine light didnt come on or anything but the second time my car died my ABS light did come on after i jumped my car. SO we push my car across an intersection to autozone, and i pull my alt. and test it everything passes. So we take my battery and test it and when it is running the test the meter reads like 2.4 for or somtething then jumps to like 8 and thats as high as it got. My battery is only like 4 months old so we charged it and it held a full charge so i put eveything back together and fire it up everyhting works fine again i let it idle for about ten minutes and everything seems fine. So i drive home which was about 2 or 3 miles so i get drive home and everything is fine so i have no idea whats wrong. With my car.