Buzzing sound coming from driver side speaker after replacement.
The past few weekends I have completed the following projects on my 1998 BMW 74iL. 1) Replaced passenger side door lock actuator/assembly 2) replaced passenger side mid bass driver with an aftermarket unit 3) Replaced driver side door lock actuator/assembly 3) replaced driver side mid bass driver with aftermarket unit. After completing all this now the driver side speaker I replaced has a constant buzzing when the car is off. I took out the speaker and hooked up an old BMW unit from the rear deck to it and it buzzes as well. I had the neg terminal disconnected when replacing both door lock actuator/assemblies. Does anyone have guidance on what to do from here? Thanks.
Just keeping it reliable and looking decent.