Hey guys, i've been hearing weird noises and i pinpointed it from my alternator. I think its the bearing/s. Where is a good shop near ortigas that i can have it checked and diagnosed? I was hoping there would be a good place to have it checked and repaired as well!

By the way ito pa problems ko, that i think are related to the alternator.
- Everytime i use anything electrical, windows, a/c, radio, lights, etc. when i turn them on, bumababa rpm ko from 800 down to 650-750. Its obvious that when i use electrical devices, talagang bumababa lang ang rpm tapos mag-nonormalize ulit sa 800. Weird lang siya, pero di naman critical. But there are times that the rpm gets really low like 500 pag sabay sabay ang a/c radio and lights switch on ko at the same time!

Help PLEASE!!