Forget the keycard or phone app, one software engineer is trying out a new way to unlock and start her Tesla Model 3.

Amie DD, who has a background in game simulation and programming, recently released a video showing how she “biohacked” her body. The software engineer removed the RFID chip from the Tesla Model 3 valet card using acetone, then placed it into a biopolymer, which was injected through a hollow needle into her left arm. A professional who specializes in body modifications performed the injection.

You can watch the process below, although folks who don’t like blood should consider skipping it. Amie DD also has a page on Hackaday.io that explains the project and the process.

The video is missing one crucial detail. It doesn’t show whether the method works. TechCrunch will update the post once a new video delivering the news is released.

Amie is not new to biohacking. The original idea was to use the existing RFID implant chip that was already in her hand to be able to start the Model 3. That method, which would have involved taking the Java applet and writing it onto her own chip, didn’t work because of Tesla’s security. So, Amie DD opted for another implant.

Amie DD explains why and how she did this in another, longer video posted below. She also talks a bit about her original implant in her left hand, which she says is used for “access control.” She uses it to unlock the door of her home, for instance.