can any one help

[BLUE-STORM]

so i have tryed a few things got a 3 microphared suprose on the alternator , but i still getting this wissel in my speakers, but the funny thing is that tonight it seemeed not to wisel untill the car warms up a bit likt just under half way warm on teh guage, which is very wired and make evern less sence , so has any one got any idea's please can some one hel;p had this problem 2 weeks and cant seen to sort it out or could my alternaton be nakered ??? plase help

 

[Dink]

have you got just the stock speakers and head unit?

i'm not sure a 3 microfarad capacitor is going to help much i'm sure you need to go smaller and be of a non polarised ceramic type.

fisrt thing i would do is check the earth coming from the chassis to the battery