So for people with e46s that want them a bit harder to take.
1, enable the factory alarm even if it’s just set to flash lights. Add Bonnet switch at least. Needs enabling at your fav BMW agent.
2, consider disabling internal obd port or get the product that adds a siren that activates on the dummy port. The siren can fit where the original hands free speaker used to be located.
3, mongoose or similar tracker which has a disable circuit. Mobile app will tell you if car is moved. Choose something like fuelpump or dme power to disable.
4 , payback circuit 😀, add an old spark plug coil to your fake internal OBDI port on the bus transmit. , will blow the …. out of any of the devices that tries and circumvents the EWS.