VW Polo IV 9N 9N3 car speakers German winner upgrade kit front - rear seat side - Car Hifi Radio Adapter.eu
HASDA 6.5 Inch Marine Boat Speakers - 2 Way Waterproof and Weather Resistant White Speakers for ATV UTV Yacht Boat SPA Golf Cart, 4 Ohm, 240 Max Watts, A Pair 065W (White-No Bluetooth)
Kenwood Speakers For Front.Rear Door.Overhead for 1995-2006 Suburban*Tahoe*Yukon 659783099369 | eBay
2014 - 2020 VW GTI / GOLF Front Door Speaker and Tweeter Install - YouTube
Set of 2 Door Speakers 93-99 VW Jetta Golf GTI Cabrio MK3 - 1H0 035 411 A | eBay
Audio - standard Mk2 Golf speakers and factory speaker sizes