Chosen Solution
The connection wire coming out of the back of my Thunderbolt Display is frayed and so behaving strangely so I want to replace the wire rather than buy a whole new display. I found this part: https://www.ebay.fr/itm/ALL-IN-ONE-CABLE… but I am not sure if it is the correct part. How do I know for sure that the wire will work with my Thunderbolt display?
First here’s a similar answer which show how to get it installed: Disconnect thunderbolt cable from display The cable you want is this one: Thunderbolt-MagSafe combo cable - Apple P/N 922-9941. If is that you’re good to go!