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Video by Vespa Portland via YouTube
Source
Your butt and hands deserve some warmth while you ride. If you have a 2023 or newer GTS, lucky you, that’s now in the cards!
List of accessories (and part numbers as of the time of this filming) are below. Keep in mind that Piaggio randomly changes part numbers so be sure to check with your local shop to make sure you’re getting the right items.
Also note the model of your GTS matters! There are four types of GTS – the base model GTS, the GTS Super, Super Sport, and Supertech. The latter two (Super Sport and Supertech) come with the Piaggio multimedia system "MIA" installed standard. Having one of those models means you need one less internal component to make all of this work. If you have a base model GTS, or GTS Super, you will also need the MIA system and its installation kit in addition to the the other items. Give your dealer your VIN and they should be able to figure all of this out.
Parts list: Again, have your local shop double check these are still current part numbers.
GTS "Comfort" Heated Seat – 1B011696
Piaggio OEM Heated Grips – 1C007079
Installation Kit for Heating System Control Unit – 1D004443
Piaggio Heated Devices Control Unit – 1D004429
Piaggio MIA system: CM335200A (only needed on GTS and GTS Super. Standard on Sport/Tech)
MIA system installation kit: 1D004440 (only need on GTS and GTS Super. Standard on Sport/Tech)
Part numbers are different for heated accessories on the Piaggio BV 400 and MP3 530.
Installation video from the guy in Germany: https://youtu.be/akHIsLth1vM?si=8xUHjHgl0HfE6rLE