I bought the car with aftermarket speakers and there's a yellow wire connected directly to the battery. I think its draining my battery, not sure, but I heard I can connect that wire as an accessory in the fuse box next to the battery? I'm not sure if this is true but can someone let me know where to connect it, so its not directly attach to the battery. Thanks

 

Not sure why the speakers would be directly connected to the battery. Are you sure there isn't an amp somewhere? You can connect to the fuse box but might start blowing fuses if not done properly.