First i changed the head unit to alpine. Better but not great. Then i changed the front speakers to alpine. Better again, but still not great. The rear speakers can only be accessed by removing the rear seats and apparently is a pig of a job, so i've left them alone.
Then i added a subwoofer, with integrated amp, in the boot ....ah, thats what was missing ...some bass! It just sounded naff, without any bass. It was the smallest sub i could find in halfords, less than £100 but makes a world of difference to non bose setup.
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