mazda13B88

so im driving down the road yesterday and i started hearing this clicking noise coming from behind my steering wheel. i look ayt my battery gauge and its jumping up and down. this clicking dont stay clicking. ot comes and goes a couple seconds to couple minutes. then while im goign down the road my car just shuts off. so its decelerating and then out of nowhere it comes back on. im going to try and see what it is tomorrow and ill post up what i find but had anyone ever had this problem? the clicking noise almost sounds like a relay turing on and off. i drive the car today and it is still doing it. this is the first real problem ive had with this car in about 55000 miles. no joke. since i had the motor rebuilt, i have one of the most reliable rx7 on the road. till yesterday, lol.