Have these adapters bought for my Golf4 and they fit absolutely perfect fit. Could so my EM-Phaser 16er speaker easily installed. it looks nothing from verbastelt and holds just super. Sure, the Golf the original speakers are riveted. But if you just a little bit what comes up with, you get perhaps the idea that you can attach the adapter plate-tapping screws without problems. (This is described, moreover, the Internet often) Because rust you need to as well as worry, stainless steel screws and the plate on which the adapter is coming anyway not varnished.