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  1. K

    DIY Guide: 2021+ Model 3 SR+ Hansshow Premium Audio Upgrade (enable speakers)

    VERY IMPORTANT!!! Before you start any of the harness install, you need to do this!!! If you don’t, then you could cause error problems and have to take your Tesla into the shop. Or get shocked/sparks. Open all doors now or you will be locked out. 1) You need to turn off the power on the...
  2. K

    DIY Guide: 2021+ Model 3 SR+ Hansshow Premium Audio Upgrade (enable speakers)

    You have A1 and A2 mixed up. I tried and they don’t fit that way. If you see A2 has gray coloured wires and A1 has coloured wires. The gray wires are on the drivers side in your connected picture. Indicating that you have them mixed up on your picture of the wiring harness layout picture at the...