Quote Originally Posted by Melody
Which car horn do you use? Also, what are you using as its power source? How heavy is it and where is it mounted?

Mel
The horn is a standard replacement horn, low tone, from Pep Boys. It is powered by the same 12V SLA battery as runs my 46 LED truck taillight. The battery is inside a plastic tool box that is strapped to my rear rack. The taillight is bolted to the back of the tool box/battery case. The battery is made by Vector Manufacturing and can be gotten at Best Buy in the auto accessory section. It does take a special Europeon fuse which is a pain. Battery $20 + tool box $7 + horn $10 + horn button $4 + truck LED taillight $36. Until I broke it I also ran a 3w LED emitter ($56) on the same battery. The taillight gives enough light that I can see a red glow in my rear view mirror. I'll rework the front light for next winter, because this is the best system I've used yet. My NiteRider digital did not last a full season, my first NiteHawk system was great, but the replacement battery is $90. Of course this system is heavy (and very ugly). On the other hand, it is relatively cheap and has at least 2 components that blow any commercial products out of the water. I'll try to get some pictures next week. Jean