Question- Subwoofer making strange noise....??

Alright, I got a 12" Pioneer Sub, 400 Watts. I have had this for awhile, it was given to me. I really don't know how to explain the sound. Its like a low screech mixed with a crackle. Is it done for good or can it be fixed? If so, can I do it myself. Thanks guys.
Post edited by T_Unit616 on
Comments
unfortunately, it cannot be fixed, it will have to be replaced
"Its not good enough until we have real-time fearmongering. I want my fear mongered as it happens." - Shizelbs
Alright. I thought it was dead but just checking. But ya its gone.
And everytime i raise the volume these screeching noises will occur out of the speakers.
I'd lower the volume all the way and it is still there.
Only goes away when head unit is off.
Also this only occurs when the car is running, or while driving.
1999 Escort zx2.