You may find the information you are looking for in the Aftermarket and Accessories Forum, Overseas Goodies thread.
There are links to the Suzuki Japan website courtesy of Stargazer complete with English translation.
An extremely nice gadget indeed which I installed at first just to show off a little (wow-effect with friends) but then learned to love (my wife even more). I wouldn't want to miss it and would redo the entire job (about 5 hours) on the next bike first thing after purchase!
I put two independently switchable self-sticking carbon heating mats (from an automotive supplier) between the vinyl-cover and the seat-foam. The two weatherproof switches went into the plastic-cover (next to the lockable glove-box, see photo-gallery) for the rider and under the Top-Case carrier for the passenger. Both switches operate two relais, the power comes directly from the battery, current draw for both heaters is around 5-6 amps (depends on how much the carbon mats are shortened).
Approx. cost: 66 Euros for the heaters, a few $s for the 2 relais, the 2 switches, crimp connectors, cables, cable-ties, mineral water, etc and as mentionned about 5 hours time.
Works great, keeps my wife longer in the saddle when it gets cold Cool and............show-time
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