SLK (R171) remote vario-roof operation retrofit?

[Mustow]

Does anyone know if it's possible to retrofit remote vario-roof operation from the key? I know this is a fairly low cost option when bought new but my SLK280 AMG Sport wasn't fitted with it (didn't get it new) and it seems like a nice gadget to have.

[Mustow]

SmartTOP looks good and I've found someone in Canterbury who sells it for £175 so quite cheap too. I am a little nervous about trying to fit it myself though as the link you gave seems to show several problems for the home fitter. Have you any experience of this unit or could you recommend someone who could fit one? I live in North London.

[Mustow]

Thanks for your help steve-p, I'll post again when I get it done.