Ipod or speaker problem

[tbs10]

Hi all, any idea our warranty cover the ipod usb port or speakers?? notice after half a year ago when i complain the battery problem and they refresh my ecu etc then got this problem, songs play from cd or radio is ok but when come to ipod certains songs will having chirping sound coming out. Before this incident the songs playing from ipod was ok.


Connect my wife old iphone 3gs and also iphone 4s also same, but when songs play via bluetooth is ok. Any bros encounter these problem before??