Yeah, as Graham says, it looks like an old relay that's lost its cover.

I imagine it will be purple/black to the switch, black to the horns, yellow to 12V live and then an earth somewhere.

New relays are pretty cheap, so I'd just stick a new one in.

[Linked Image]


"Y mae dafad ddu ym mhob praidd"
1972 4/4, 1981 MGBGT, 1984 FLHT1340, 1980 XLH1000, 1990 ZX10