A hacker successfully ran a Tesla Model 3 car computer on their desk using parts from crashed cars, uncovering significant technical challenges. The project required sourcing the expensive MCU ($200-$300) and screen ($175) from eBay salvage companies. The critical hurdle emerged when attempting to connect the MCU to the screen using a specialized 6-pin Rosenberger cable, which wasn't available for purchase individually. The solution involved purchasing an entire $80 dashboard wiring harness loom instead, as Tesla doesn't sell single cables. This teardown provided unprecedented access to Tesla's internal network, revealing open SSH and REST APIs on the MCU, and highlighted the complexity of reverse engineering Tesla's systems.