After trying to salvage a hacked up light harness to my 68, I hooked up the battery and fried the wire from the battery to the alt.(internal). It didnt affect any of the red wiring going to the horn relay or starter but completely melted the red wire from the battery to the junction and the red wire to the alternator? Serves me right for not putting a fusible link from the battery to the junction. Nevertheless, I would like to fire the engine to see if it runs and track down the electrical gremlins there later. Can I simply run a 10 gauge red from the battery through a fusible link to the juntion, then run a temporary 10 gauge red straight to the horn relay to crank the engine up? I would assume that if something is still not right, it will fry the fusible link on the horn relay heading out to the fuse box?