Hi couldn't find any other matching question I've got a 99 uk wagon I was wondering what size speakers they are in both front an back is it possible to git 6x9s in the rear

 

IIRC, both front and rear were 13cm.

Rears can take 6x9's after removal of the mounting ring for the old ones, mine sit INSIDE the car on home-made lozenge shaped adaptors, which are covered in a fabric identical to the rear shelf, which I bought from an ICE store. Fitting from underneath means you don't need the adaptor.

Mine also has 16.5cm 3-way ones in the front, again fitted with home made mdf spacers, which are invisible once the doorcard is back on.



As you can see, I've also fitted mine with rear wash-wipe.