Radio2

hey i finally hooked up my system i got my 6x9s my subs but when i hook up the head unit it says to hook it up to a fuse but i dunno which one so i put it in a random one and when i start the car the radio works when it in acc, but when i go to start the car i get this high pitched screeching noise through the speakers ...any idea would help, like which fuse i need to hook up to get an acc power source and then how can i stop this screeching noise... help soon would be great... thanks

wtf??? :screwy:

No Clue...

Consult a manual lol
Or maybe a lower voltage fuse?