Re: battery woes
First put a charger on the battery to bring it back to full charge. It's very hard on a battery to run it low or leave it low on charge. A 3 to 6 amp charger will be best. You don't want a fast high charge.
You need to remove and touch the power wire to each circuit to isolate the drain. First remove the light/horn wire from the cutout and see if it sparks. A drain that's enough to kill the battery in 2 hours should make a good spark. It that sparks, then remove the horn cover and remove the power wire to see if it sparks at the horn terminal. You can also remove the power wire at the coil to see if it sparks. Some of the repro brake light switches are known to short to ground, and this will make a considerable draw. Do you have a fuse? This much draw should blow the fuse.
Are you using an alternator?
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