hello people i just noticed on my copen that at the front of the car these a very slight squeak and i rekon it could be the rubber bushes need changing as it only happens over bumps no other time and i only hear it with the roof down its unheard with the roof up... i do live in an area where there are speed bumps and i heard these can cause the bushes to wear quicker then usual... what do you guys rekon ? and my cars only done 18k miles