Anybody install the OEM sliding armrest yet? I know that someone did but then they traded the GP in for a Porsche, so information from them will be hard to get since I doubt they monitor the forum anymore. I know they sell the retro fit kits and was wondering if they will work on the GP? Also, has there been any change to the armrests since 2007? They constantly come up on ebay but want to make sure there havent been any changes to the armrest and mounts.