These have a separate speaker and tweeter. So you will need to find somewhere to fit the tweeter if you put them in the rear.
It is easier to use coaxial speakers in the rear (ie the tweeter is fitted in the middle of the main speaker). This avoids the problem of finding somewhere to fit the tweeter. Thats what I did - see link below:
Rear Speakers - Replacement with Coaxials (3 Door)
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I would add that the speakers for sale are what I have fitted to the front doors !