Well, like most new things that I get, I've begun the disassembly of the Skunk. The horn did not work when I got the bike and we assumed it was due to the horn being filled with mud dobber nests. The steps taken for the repair are below (happy ending included):
- Horn does not work.
- Clear visible mud dobber nests, no sound.
- Meter test inconclusive; voltage changes on button press, but not to the expected 12v
- Assume problem is combination of wiring and clogged horn
- Clean horn more thoroughly and wire directly to battery for testing
- Horn makes weak gurgling "poot" noise
- Begin wire chase sequence
- Remove headlight plate and headlight, disassemble headlight casing
- Discover wire connections in headlight casing
- Realize that I have no idea how a Rocket is wired
- Discover aftermarket-looking mystery box inside of headlight casing
- Disassemble, discover that it powers an out-of-date phone charger
- Borrow stock Thunderbird horn from @UnicornRider and @Mad Dog to test wiring
- No sound on button press; Feel onset of regret, activate brain
- Check fuses
- Horn fuse is burned through; replace fuse
- Horn makes noise
- Acquire new horns, wire into existing horn system; Reassembly pending
See attachments for reference, new pictures pending reassembly