The power wire to the dash taps off the battery cable connector at the starter. Chances are you might have had a loose or dirty connection there that was starving the horn, headlights, ignition switch, etc. for voltage.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!