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Hey guys anyways I use to have a 2 10 inch subs and an alpine amp in my car. Was running about 300 rms. Anywyas I had a problem that whenever my subs were loud my car would have a squeeling noise. It did this before I had the subs though and whenever my AC was on. Anywyas since the colder weather came I realised that my car made this sound a lot worse when my defrosters were on so I decided to upgrade to a GS alternator. This still did not solve my problems although it did help a bit. About a week later after getting my GS alt put in my alt light came on on my dash so back to the mechanics it went. Once this happened I decided to sell the system because I needed a car that was going to be realiable and get me to and from work. Well since I sold the system and had the alternator upgraded the car has been great no more squeeling at all.

hahah anyways my question is

Is there any possible way to get subs in my car without a squeeling noise, im thinking what if I upgraded to 4 gauge wiring, put a capacitor in and maybe the addition of a second battery allthough that does seem a little extreme to put a system in my car. Any help would be greatly appreciated. thanks

Check alternator belt tension and tighten it up a notch....

Check the belt tension using the online manual. It is not hard, but if you overtighten it you'll wear out the bearings on the pullies. If you undertighten it you'll get a squeeling belt. You can also use some "belt dressing" that will help stop the squeeling. Check the inside of the belt (ribbed side). Bend the belt where the ribbed side is up and if you see cracks in the ribs then it needs to be replaced. I run about 1000 watts with no issues. You just need a new belt or to tighten it. It has nothing to do with the amount of watts you are running.

thanks guys I know its not the belt because its been replaced twice, not even 3 weeks old now. ill check the tension and see if that helps thanks.