Trumpet horns stopped working today

[Helmsman]

You mentioned fog. Mine went bad after I washed the boat one day. I had read that spraying a little WD40 would cause the horn to blow. It did. The horn failed the next time it rained. I replaced the horn and it works fine now. They are evidently more sensitive to water as they age.

Qr Bbpost So.... Plot thickens! Pulled under dash panel to access backside of horn mount wiring, looked good, so I removed dash panel to access horn rocker switch which turned out to be a relay switch. so I tried it and horn blew?

So, the $100 question. Is my "old" Marcinco AFI trumpet horns being temperamental/going bad... or is the horn "relay" rocker switch going bad when used "allott"?

Any EE's having insight to my dilemma?

[bud37]

One thing is for sure, it is satisfying taking care of your hooters.........

[Cliffm]

Qr Bbpost You mentioned fog. Mine went bad after I washed the boat one day. I had read that spraying a little WD40 would cause the horn to blow. It did. The horn failed the next time it rained. I replaced the horn and it works fine now. They are evidently more sensitive to water as they age.

Thanks, thinking that after finding our helm stereo speakers having severely deteriorated cones, and replacing them this weekend.

Qr Bbpost So.... Plot thickens! Pulled under dash panel to access backside of horn mount wiring, looked good, so I removed dash panel to access horn rocker switch which turned out to be a relay switch. so I tried it and horn blew?

So, the $100 question. Is my "old" Marcinco AFI trumpet horns being temperamental/going bad... or is the horn "relay" rocker switch going bad when used "allott"?

Any EE's having insight to my dilemma?

[Cliffm]

They died!
went to WestMarine, bought the Marinko 12V 123db pair, swapped out, sounds great!
appear to be the same make as previous OEM installed units, hoping they last as long.