Why is my new radio draining my battery?
Why is my new radio draining my battery? If the stereo is old, it can drain the battery due to a faulty relay. If a radio is newly installed, it is most likely wired to a fuse that receives power when the engine is off. Tip: If your car radio drains the battery, the first thing I would do, is to test all wiring connections. Why does my car radio drain the battery? If the yellow wire and black wire are connected correct, but the red wire being connected with permeation power, then the radio will drain car battery. How...