Just purchased a used MX-5 with the hard top. When I have the top closed and I'm driving I hear a cracking type noise off and on right side passenger side coming from the top. Anyone know what the noise is? The top goes up and down with no issues. I just hear the sound when top is up.I know an older car can have creaks and noises but was wondering if it's anything serious to be concerned about.Thanks in advance.