Mk4 gti head unit install, need help!

[RubAVeeDubDub]

I just ripped out the old deck from the Bora, and even though the headunit was aftermarket, it had nothing like that attached behind it.

The factory stereo harness' are the Eurovox ones that all aftermarket ISO harnesses use. All you need to do is buy a ISO harness unique to your headunit brand and them its pretty much plug in and play apart from needing to switch the yellow and red wires on the ISO harness. Simple stuff. Easiest headunit wiring install I've ever had to do.