The subwoofer in my tailgate (nr. 8 in the picture) is shot/sheared and not producing a nice sound anymore.

Does anyone know of a good replacement one? Do I need an original, or are there aftermarket ones that are a direct fit (without having to drill extra holes / making a spacer / ...)?
Just a good budget one will be fine: I don't need "the best of the best".

This is for a 2009 TDV8.

Check on eBay - should be plenty of used ones for not much money.

Like this one https://www.ebay.co.uk/itm/204728282673?it...R5bryaD9Yw

I had already seen some on ebay before, but I was thinking that they all are about the same age as my own (or even older), so they could/will have the same issue (in the near future).

So my preferred choice would be a new aftermarket one, if there is one that is a direct fit.

Now that I am reading my own post again: I think I have posted an incorrect image.
The image is pointing to a speaker in the rear side-panel. I am actually needing the one in the tailgate. (I don't even have one in the side-panel if I remember correctly).