About a month ago I finished installing a Vintage Air system which including moving the alternator to the drivers side to make room for the compressor. When I had the alternator out I noticed the pulley had a pretty substantial wobble. After putting it back in initially it read normal at around 14.5 volts on my under-dash meter. Slowly I have noticed it deteriorating, it now sits around 13 volts and if I use the turn signal it pulses with the signal between 12.5-13 volts. Does this sound like the alternator is dying? If so any recommendations on amperage size? Can you over do it with the amps? It needs to be able to power all the standard electrical, AC, after market stereo system, and auxiliary fans.