got back yesterday and the car hadnt been started in about two weeks, battery was completely flat not even a tickover and nothing again jumpstarting it so long story short my friend had a tractor battery and heavy duty jump leads which started the car fine! now i have an engine warning light and a constant high pitched noise coming from the rear of the car but i cant find it 
sort of a peircing noise as if i had left lights on when getting outa the car like it does in some (not my stilo though)
what can it be??? any ideas any1 and how to stop! v anoyying!
btw got amps etc but its not them i tried disconectin the power lead to amps and it still continues...
sort of a peircing noise as if i had left lights on when getting outa the car like it does in some (not my stilo though)what can it be???
any ideas any1 and how to stop! v anoyying!btw got amps etc but its not them i tried disconectin the power lead to amps and it still continues...
