Be sure to turn the power off before wiring. Be particularly careful where you route the wires. Keep them well away from the engine, and exhaust pipe, etc. Heat may damage the wires.
If the fuse should blow, check to see if the wiring is correct. If it is, replace the fuse with a new one with the same amperage rating as the original.
To replace the fuse, remove the old fuse of the power supply lead and insert the new One.
*Power supply lead for the tuner amp unit: 15A FUSE
*Power supply lead for the main unit: 3A FUSE
*There are various types of fuse holder. Do not let the battery side touch other metal parts.
*After the connection, fix the lead by a clamp or insulation tape for protection.
Fuse holder
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