My apologies. Often, what people say and what they mean are two very different things. I can't help on this as I never leave the car with the top down, I always put it back up at any destination to prevent security or bird mess issues.
Black Sapphire BMW Z4 sDrive35i
Mods: HiFi Tweeters Stubby LED Halos & Front Indicators DVDInMotion SmartTop 313 BMW Performance Alloys LCI Repeaters http://goo.gl/PF4nSz