Vehicle door locks stopped working with key fob and with interior controls. Radio volume control on unit dsnt work only the steering wheel control. Radio will randomly change station by itself. Radio will randomly turn on when car is off. Car will not start and has to be jumped for no apparent reason. Battery has had to been replaced twice in the last 4 years. Dealership has not been able to replicate any of the issues other than the door locks that where repaired under an extended warranty that we purchased. There has to be some kind of electrical issue with these cars as I have seen many other reports of same issues from other people