Welcome to the frey.
Have you poured through the GPS section of this forum? There's lot's of different and unique options to mounting explained there (handlebar, stingray, BMR mount...). I was more drawn to the BMR mount to ensure I keep looking ahead. That's a huge part of making the LT a bit easier to handle, for me anyway.
Cables are sometimes model specific. Can you provide more details as to what you have and what you want to end up with?
My power is switched and turns the GPS off at the worst times. Eventually I plan to re-wire it hot all the time. Just remember to turn it off at the end of the day. To keep it on, if the power is switched off, install the batteries. Gives you 20 seconds to decide...... Concerned about batteries corroding though... if left in the GPS for too long. Make sure they are EverReady. They replace devises damaged by corroding batteries. At least flash lights!
I hard wired mine to the "Map" light above the gauges. When I stop to get fuel, snacks etc...I leave the key in the accessory position so the GPS will stay on. (No wait to restart). Works great for me. Also I mounted the GPS to the "Stingray" with the factory mount that came with the unit. As you look down at the Gauges the GPS is right there in site.
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