got a 2024 stelvio. is the an upfront power connection as there was on the Norge or is it a wiring to the back job. is there an ignition live connector at Battery - same as 85TT ?
The dashboard-mounted USB socket has an ignition-switched 12v live to it on a 2-pin superseal connector. I bought a pack of the connectors on eBay and made up a Y-splitter to tap into it without having to modify the original wiring, then stuck one on the sat nav power supply. There’s room to stash the wiring and power supply in the space behind the panel.
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the underseat 12v socket on v85tt is not standard fitment, I added one and all the wiring is there for it so they should have made it standard but they want to charge extra for it 
great idea
did you just prise the switch out ?
I removed the panel in which the socket is mounted to reveal the space behind it. I’m not sure you’ll be able to get sufficient access without doing so.
You’ll need to remove the windscreen, wind deflectors, accessory bar turrets, windscreen central panel/PFF radar and instrument cluster cover, after which you can remove the three screws holding the left-hand cover (with the USB socket) and gently pull it forward.
It sounds like a lot of work but is actually pretty straightforward and didn’t take very long. Everything went back together easily and I didn’t have any issues with the plastics aligning etc.
The workshop manual covers dismantling the relevant items on pages 424-427.
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Reading this string and other similar ones has me wondering the whys and hows of Guzzi’s decisions on what to supply on what bikes?
I am no electrician or even ace mechanic or engineer like many on here but seems to me that on the more recent model years there appears to be a uniform wiring loom across several models? On my base Mandello there is a standard fitted USB under the rear seat cover and previous owner fitted a front fascia USB. Appears on Sid’s v85 it is the opposite?
The underseat one puzzles me because there is almost zero room under there to fit anything to use the plug?
On another note I recently fitted aftermarket heated grips and chose to go direct to the battery rather than dismantling half the front end to hook into the existing optional power source there. I also want to run my heated vest thus I simply got a twin SAE type splitter off the battery which then when not riding I use for the battery tender.
When you look at the dirt cheap costs of these outlets why can’t they be standard across the recent bikes right from the showroom? Is it really just trying to make dealerships money on add ons? The basic wiring is all there.. for a minor few quid more how about making our farkle fitting gloriously simpler?
Am I being unnecessarily naive? If so tell me why? 
I used the underseat one to charge a portable battery pack or phone on long trips.
since the dash one is no good in the rain i’'ve now got the underseat one connected to a wireless phone charger on the handlebars, works great and safe from rain, turns off when ignition off.
as it is a usb cable running under the tank, it is easy to unplug if I want to use the socket for something else too.
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Must have a better tray than me to get anything of any size to lay flat enough. Nice to have choices though!
Initially I used a Thunderbox on my Stelvio
I’ve since swapped it for a PDM-60.
I’ve taken the switched “live” from the accessory socket hidden next to the rear light (where the OEM usb accessory plugs in).
The PDM 60 is programmed to delay power for 15 seconds, so I have time to start the engine before any extra electric load hits the battery (leaving full power for cranking)
The PDM 60 powers my heated grips (Oxford), sat nav and aux lights….
Very pleased with the setup….