After days and of troubleshooting I finally defeated the alternator whine.

the Culprit was the heads touching each other. ya.. Never had this problem before but i guess every car is different.

I was almost at the point of just saying fuck it and putting it all back to stock and throw a sub, but I decided to give it one more go today. And after few hours of troubleshooting I found out the problem never stayed consistent.

Long story short. My solder on RCA female connectors which are made of metal were touching each other after I bundle them up.

Solution? electrical tape the RCA's individually so they don't conduct. Now my alternator noise is gone and I can continue with installing rest of my system.

if you have alternator whine try it. it may just work for you like it did for me.

 

was this with tapping wires before or after stock amp?

 

not the wires.. i taped up the RCA heads on both ends. so the RCA's don't touch each other.

 

lol i know that.. where did you tap the wires for the rca's? (tapping, u got it confused with taping lol)

 

oh the connector before the amp.