Need help or recommendation?

[Chucky88]

Previously I have this problem, when stationary, the voltage will suddenly drop down to 8V then it will slowly charge up again and this happens a few time, my audio HU will switch off and on again.

 

Anyone know any of such symptom refers to what problem? If alternator spoilt, how much will it cost to replace it?

[Mivec9]

alternator gonna die liao...recon around $100.

 

wat ur drive...

 

 

I had this symptom of HU off and on...also alarm on and off too.