I have searched throughout this entire forum and others for this answer i did not see any. Problem is i have just recently bought my car 2 weeks ago and i run my iphone through the aux jack and for some reason the base will cut out and the sound will change it happens alot when i`m turning or hit a bump i dont think anything is loose, i still have my bumper to bumper for another year but i want to at least get an answer as to what i can do at home without taking it to them and having tell me its fine like they always do.