Changing speakers RENAULT Mégane 3 phase 3

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Aalex_ Posted messages 13 Status Member -  
Aalex_ Posted messages 13 Status Member -
Hello everyone, and best wishes for 2021!

I would like your opinion on the original speakers of the 2014 Mégane 3 phase 3, what do you think?

I would like to replace all of them with new and more efficient ones, and why not add a subwoofer in the trunk. All of this, of course, at a reasonable price.
Which brands and models should I consider? Also, is it possible to connect a subwoofer to the car's original radio?

Thank you in advance for your valuable advice ^^

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