9000kev

hi guys i picked up this car today. its fitted with front and rear sensors yet i dont get any audiable beeps, when driving upto something or starting the car or anything? neither does it beep when engagging reserve. ive pressed the button on the console and it doesnt cjange anything or even illuminate. ive checked under the passenger footwell its dry but doesnt mean it wasnt wet previously. is there a fuse to check? what sends ppwer to the switch on the dash? any help please guys thanks