Fitting sub to standard headunit

[GSXR600]

Morning All!

Have a 1.4TSI sport 2010 all time favourite shape of car!

Im looking at adding a sub in the boot can this be done on a standard headunit or do you need aftermarket ?

Any help appreciated!

 

[Legojon]

What headunit is it? I've got a sub hooked up to my RNS315.

 

[GSXR600]

I have this head unit fitted pal

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