With all of the fancy gadgets and things people get today, there is no doubt having wires running all over the place can get bothersome. Here are 4 places to get switched 12V power in your 3 series. It is recommended to use 18-22ga connectors if you tab in

1. The cigarette lighter
2. BMW offers a 12v accessory power cable that plugs into the torch charger in the glove compartment. Part # 82110004073
3. There’s a wiring harness in the headliner console that has +12v for the universal garage door opener (UGDO). It’s usually wrapped in black tape and shoved up above the passenger visor area. The +12v wire is green & blue.
4. There’s a wiring harness in the center console under the coin tray for the analog cellular telephone option. The +12v wire is purple/white.
5. Adding a circuit into the fuses in the glove box: Add a circuit