Custom Made Speaker Adapters - Compatible with Select Toyota Vehicles – Sounds Good Stereo Online
1998-Up Volkswagen Speaker Adapter (pair)
Speakers Adaptor For Vw Golf Iv Passat Polo Skoda Seat Leon Audi Speaker Adapter Rings 165mm 6.5" Kit Spacers Height 40mm - Fascias - AliExpress
VW VOLKSWAGEN Golf Mk7 Rear Door Speaker Adaptor Rings Spacers Kit 165mm 6.5" for sale online | eBay
Amazon.com: 4 Pack Speaker Wire Harness Adapter Replacement for Volkswagen Speaker Harness VW Jetta GLI GTI Beetle Golf Passat Polo Car Speaker Connector Harness Adapter : Electronics
Scosche SAVW-6 Speaker Mounting Brackets Install 5-1/4" or 6-1/2" speakers in select select 1998-up Volkswagen and 2005-09 Land Rover vehicles at Crutchfield