Something to shift seat stains?

[Jimp]

I spilled pretty much an entire bottle of ginger ale over the front seat of my mk5 ( ) and did my best to dry it all up, but there's a pretty big stain left on the base of the seat. It's completely dry and I haven't been able to shift it. What would be good for getting rid of this stain?
Thanks in advance 

[Khare]

When I bought my golf, the front seat had a pretty nasty stain on the base, you can see it in the pic below.



Got ride of it after I wet vacuumed the interior using a friend of Henry, George.



Got rid of it on the first go and all the other stains the car had.

[CMD]

We use a wetvax, those spray cleaners are not that Good