1 question? Couild you go thru the headlight insead of taking off the fairing? If so how do your get the black plastic trim pc off with out breaking the tabs?
The short answer is, no. I think it would be far more difficult to accomplish the task if you leave the fairing on.
I ripped the tab on the black plastic trim piece the second time I took off the fairing. Replacement is about $8.00 and the part wasn't stocked by my dealer. Since then I've learned to take off the fairing leaving the trim in place. I remove the trim from behind the removed fairing by using a putty knife to unlock the tabs. After that, I remove the headlamp assembly so I can put the fairing back on more easily.
Here's a longer answer to why I think it is not possible to disconnect the TGS wiring without removing the fairing.
If you are familiar with the way the fairing is supported behind the headlamps, this will make sense. If not, you have to imagine it.
The front of the fairing is supported by two metal "hooks." The flat plasitc behind the headlamp assembly fits into the hooks. It's a pressure fit and I usually have to bump the fairing to get it to go back and down into the hooks.
The metal bracket that forms the hooks that support the fairing has two indentations behind the front indentation that is the "hook." The cable that the TGS cable plugs into is supported by the indentation immediately behind the "hook." So you have to be able to get at the cables and connectors in order to disconnect and reconnect the TGS cable. After you've done it once you might be able to do it without removing the fairing, but you would have to remove the black trim piece and the headlamp assembly in order to get access to the connector. You can get the trim piece off if you are very careful, but I'm not sure you could squeeze the 3 fasteners that hold the headlamp assembly to the fairing.
Another reason to take off the fairing is to be able to guide the cable through the nest of other cables as you remove and reinstall it.
I told you it would be a long answer. Let me know if it is understandable.