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Re: best solutions for dash panel wiring connections?

Ian , I'm not sure what the current draw of the Rist is but the fuse you have should be ok for the light circuit. I would probably wire the horn independently, you could wire it direct from the battery, or spur from the INPUT side of the ammeter. The lucas type "electro-magnet " type of horn do pull a fair bit of current and are usually wired via a fused relay.
 photo horn image001.jpg

Location: Piddle Valley

Re: best solutions for dash panel wiring connections?

Many thanks again for your help Peter, it is much appreciated. IanM

Re: best solutions for dash panel wiring connections?

Hi Peter,
whilst you can wire up the horn as you show, for cars with a horn push in the center of the steering wheel, that is not how they are / were wired originally.

The correct wiring is to have a permanent live feed to one side of the horn, (IE not the earth) and the horn push connects to the other terminal on the earth side - that way if the cable in the steering column wears you only get an irritating random sounding of the horn and not a direct shorting to earth of the live feed which would likely burn out the wiring.

Steve V.

Location: Polegate, East Sussex, United Kingdom

Re: best solutions for dash panel wiring connections?

Sorry for the error , you're quite right, the push switch should be on the earth side of the horn.

Location: Piddle Valley