VW Jetta 6 MK6 Jetta 7 Bass Speaker Bass Woofer Door Front Or Door Rear | eBay
Focal Kit For Golf 6/Bora/Jetta MK6 09-14 - Includes Two Pairs Of IS165VW Component 6.5" Speakers - Creative Audio
For those of you who want more bass but don't want to sacrifice your spare tire or hatch space, I highly recommend this spare tire mount subwoofer : r/GolfGTI