[Drdclewis]

I was wondering if the load being pulled through the switch may be too much for the panel and thus, the direct battery connection would work but the panel not. I still dont understand why not having the horn connected would cause the panel to not function. Do yoiu have an answer for that? It seems that disconnecting the horn would just case the horn not to work. Not the panel to go out.

[Drdclewis]

Correct. There are two feeds. One from the master switch and one directly from the battery (always hot). I will have to check with a meter when I can to the horn again, but it is just weird. The horn works directly from the battery, but not when connected through my old or new A10 panel. BUT, when on the panel, you see a dramatic pull down of power when the button is pushed with no sound. I can understand the horn pulling too many amps and that the resistance through the switch may be a problem, but when would ALL functions on the panel go out when the horn is disconnected. THAT has me baffled!!

[Drdclewis]

It really isnt the panel. I purchased from parts while at Norfork a new A10 and installed. I do not need a credit as I had a couple of lights out on the panel and the new one fixed that. It has to be in the harness somewhere I would think. Just looking for suggestions or guidance as to how to make pinpoint the short. But thanks for the offer. On that I am just fine.

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