I own a 2008 GXP Turbo with the heavy padded convertible top. Per my original owners manual, they recommend the top be cleaned with warm soap and water, rinsed, then left to dry out before putting the top down. I have 80,000 miles on my baby and the top looks near new. My question is: Is this enough? Are there any aftermarket products available to "treat" the top material? I am fairly new to this forum and hope this post - my first - actually makes it out of the starting gate.