Or are they both positive like a household light switch ? Just messing I’ll fire up the desktop in a bit and take a squint in my workshop manual. Andy
If you're concerned about connecting it, it doesn't matter for that horn. Both terminals are isolated from the casing. A voltmeter (i.e. seeing 12V or 0V) will tell you for sure...
Ah, interesting. My Denali soundbomb-mini has isolated terminals. Weird. Hopefully you've got a voltmeter
