hey guys and gals

recently, while I drive my 03 p5, (5spd), there is sometimes, but not always, a hissing/whining sound that is pretty loud. It starts at a cold start or tunes in after a day of not heating it while I am cruising..
I can't quite tell where the sound is coming from but its sound output comes in accordance with RPM's. it gets whinier and higher pitch as i accelerate and is flat at idle.

Also, i have blown out 7, yes that is SEVEN, pairs of head lights in the past 4 months. They are only ~$15 per pair of low beam bulbs so it is not killing me, but this should not happen. My headlights dim all the time and surge with RPM's...
When I have the wipers and air on my headlights dim upon shifting with accordance to the RPM's.. i noticed also when I started my car and was parked, i pressed all 4 window buttons at the same time to go up or down and my RPM's drop to about 500-600 as soon as i press them and all interior/exterior lights dim massively.

i have a 1000w sound system in my car , could i have friend my ECU? i desperately need to know a fix to this problem, any input is appreciated.
(Oh and also, these sypmtoms happen more when I am playing music, but THEY STILL DO REGULARLY HAPPEN EVEN WHEN MY STEREO IS COMPLETELY OFF.)

Thanks so much

alternator is damaged. voltage regulator ftl.

time for a new one or a rebuild.

get your battery tested as well because its probably damaged to.

also might wanna unhook your amp from the electrical system. voltage spikes can ruin it.

This post was edited by Subwoofer on Dec 19 2012 09:18pm

any good names for high-output alternators?

lots of choices..going to depending on you though.

singer
irragi
ohio generators
excessive amperage
mechman
powermaster

are some. different prices/quality so get ready to do some shopping around lol.

If you take out the alternator and bring it to pep boys they test it for free. They can also check the whole charge system for 15$ generally, Batt/Alt/Starter.

Singer and Tenney are good alternators.

Mechman and Power Master are good, but expensive.

Good luck