Saw this on Subaru Impreza’s and wanted to try this on the Golf MK3 platform. Quite happy with the results on the aftermarket grill, but looks even better with the stock grill (which is mounted again by the way). I got them from Aliexpress off course.

VW Golf MK3 GTI - Dual Green Hella Style Horns

VW Golf MK3 GTI - Dual Green Hella Style Horns

VW Golf MK3 GTI - Dual Green Hella Style Horns

How it looks with the aftermarket grill

VW Golf MK3 GTI - Dual Green Hella Style Horns

VW Golf MK3 GTI - Dual Green Hella Style Horns

This is how they are mounted

Work in progress