NIbiker - I didn't notice if the indicators (blinkers) flashed as well - and I have now disconnected the relay till I solve this.
The horns are earthed to the frame.
The existing horn wiring connects to the relay (possibly the positive and earth are the wrong way round on the relay - if it makes a difference).
The relay gets a direct feed from the battery and direct out to the horns (possibly these input/output are the wrong way round on the relay and need to be swapped - if it makes a difference).
These are the only possibilities I can think could be wrong.
Although - I did have to 'persuade' the dash wiring loom to fit inside the dash when reassembling (it made a tight dog leg). But I can't see that would be the cause because then the problem wouldn't just be isolated to the horn use - it would manifest at other times as well.
Cheers, Richard
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09 America, Staintune Pipes, K&N, Breathe, Hagon Nitros, AI & O2 removed, tune 20184 (modified), MTX-L a/f gauge
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