Granturismo S Milky Window Rubbers

[lotuselan7]

Hi Guys
Just got my hands on our 2012 Maserati Granturismo S after importing fron UK (took 4 months!). 
Car has been in store for vast majority of its life. Going to spend my time bringing her back to her best. Noticed the interior window runners have gone milky. Whats the best product to bring them back?   

[Murph7355]

https://www.autoglym.com/vinyl-rubber-care