Hello, twice I had fitted a particular type of horn, not one lasted a whole year. It's a motorbike horn fitted to a van. Attached links to some pics below.
The positive is connected to the positive (from the van's fog lamp circuit with the lamps removed) the negative to earth. Now the guy said the blue trigger switch wire can go to either + or - and I've always connected them to negative earth via a depressable button.
I've now replaced the horns again and should it give up again shall I connect the blue to positive? The in-line fuse always is intact and the power to the horns disconnect obviously when the engine is off. Am I doing something wrong?
Secondly, these horns have stopped production and difficult to source now. For those that know how it sounds (you have to keep pressing the trigger switch repeatedly to make it sound the way it should) can you recommend a newer horn for me please? Thank you.
Photos are in the links