rear spoiler

Hi All, I have a 2005 Convertible that I want to get a rea spoiler for. I have seen and heard many stories here but wanted to see if anyone has already fitted one. I would like the boot to open with the top down so I need to be sure its a match. i have one or 2 on Ebay however they want $1000...

Basically. A new light came on in the beetles dash today, and from looking in the manual and looking online, I am certain it is my 'Rear Spoiler' light. I don't know what this light means. It has not turned off despite turning the car off. I also drive no where near 90miles an hour. The actual...