My horn began to blow wen I turned the wheel. This happened a number of times and then it failed to start.?

I have a 98 Boxster with a similar problem. My horn began to blow wen I turned the wheel. This happened a number of times and then it failed to start. The engine would turn over but not fire. My key seems to work fine. Any ideas? Thanks much, John

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[Nick at Pelican Parts]

The starting problem may be the ignition switch but the horn blowing is probably a grounded wire for the horn pad

- Nick