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I see a company in Belgium is offering a kit to add wireless opening of the Tesla charge port, and through control signals to unlock the cable. I understand the charge port unlock needs a wireless signal added to the plug, but could the unlock cable signal be added as a charger firmware feature? (which seems to be a pilot type message). So you hit a button on the charger, and this tells the car (a Tesla) to unlock the plug at the car? https://www.evchargeking.com/en/tesla-retrofit-button-kit You could just buy this kit, they also sell a kit with a plug and button and a readymade cable with 2 plugs. Note this set up is generally for European Tesla drivers who do not have a Tesla branded home charger. European plugs are different to USA sold cars. There is a video on this link: https://www.evchargeking.com/en/t2-tesla-charging-cable-3-phase-32a

Update. I came across this device today. It seems to offer the " open car charging port" feature and is stand alone device. I am not sure how pilot signal works with this but might solve issue for some people https://evcables.co.uk/index.php/accessories/tesla-model-s-charge-port-remote-fob-opener.html

More info on wireless remote here also with DIY info: https://github.com/mstegen/Open-Chargeport/blob/master/README.md Open the full readme for detailed info