My alarm has been fitted by soldering the wires and hiding the joins within the loom. I know this because I've changed my bike's wiring for older version, I had to cut and re-solder. The original alarm installation was carried out by a Yam dealer. I reckon this method leaves less or no room for dodgy electrical connections that could cause a faulty alarm over time.

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PCV REPLACEMENT ECU WITH 04 WIRING LOOM STAGE1&2DNA GEL SEAT INSERT LOWERED 20mm FRONT+REAR CLUTCH ARM MOD
FORKSPRING SPACERS TALLER SCREEN THROTTLE GRIP CAM MOD DISTANZIAS 46TOOTH REAR SPRKT
SPEEDO HEALER 30MM HANDLEBAR RISERS TOPBOX MOUNT 08 XTX SORTED, ALMOST.
...SHEEPSKIN - Because a pain at the rear is not just a moany pillion.