you should talk to the dealership who sold you the car for there advices. i think your find it has been undersealed by the manufacturers. hope this helps.
you have a faulty abs sensor to one or more wheels of the car. you need to get the fault codes read of the ecu on the car. any garage should be able to do this for you. they will then advise you on what needs to be done.hope this helps.
seek advice from a auto electrician. striping out dash boards etc could be a waste of time if it is only an earthing problem. if you end up with a short somewhere it could turn out disastrous, fire etc, may be cheaper in the long run.