I had already bought and installed those two fanfares for the defective horn in the Gulf of my wife. Here I could not draw any comparisons since the Origninal, was as I said, is defective. There I simply connected to the circuit of the built-in horn and it works flawlessly.
Now I have the two again bought for my winter Twingo and actually that's already enough praise, acquires someone the same part twice.
The included relay I needed not in the Gulf, the Twingo I have installed it. For simplicity, I have an extra battery cable pulled, including 25 amp fuse immediately behind the connection point. But since I'm not a Dauerhuper, I assume that there repektive the wiring never something will happen. The no fuseholder is included, I can easily get over, even considering the low price.
With the aid of the supplied self-tapping mounting struts on the orignal fixing could be done. I have the fanfare attached that can rauslaufen entering splash again if necessary, in the hope that the life expectancy benefits.
For installation you need a size 10 key, four, or eight Receptacles 6.3mm, the corresponding clamping pliers or a pipe wrench and possibly some cable and a fuse holder if a connector on the existing circuit is not possible or is wanted.
The volume is quite high, comparable to a luxury saloon. This represents a real increase in safety.
Conclusion: the included mounting material is ok, the installation simple and the sound and the volume super - ergo buy recommendation.
LG
Oliver