Not terribly but it's best to only use while running to be sure.
The Legacy subwoofer will really drain your battery. It's not a good idea to run it while you're not running the engine.
All electrical devices create at least some amount of drain on your car's battery. Although the amount will vary by device, a properly wired system will charge via the car's alternator with no adverse effects.
Actually doing ANYTHING on your ipod touch whether it be listening to music, or pressing some buttons will drain the ipod battery. some things drain less battery then other things, but they all drain battery. (for example, listening to music does not drain as much battery as watching a video.) I do not know any buttons on the ipod touch called the hold button, but if you are talking about the button in the front with a square on it, that does not drain battery. if you keep holding it, a whole lot of options might open, but it does not drain battery. If it DOES drain battery, its so small of a drain that you won't notice it and it won't impact your ipod's performance
The more you use your cell phone in a day the less your battery will last. If you have a bright backlight then this will also drain your battery. Playing games, keeping apps open, text messaging a lot and calling a lot will also drain your battery more quickly.
No, a bad coil will not drain the battery.
If you are out of gas or something and keep cranking the starter then yes sooner or later you are going to drain your battery. Age of the battery is a factor, the older the battery the less time you get. Also the temperature if it is below zero out you get a lot less time.
Yes you sure can. It is a myth that sitting a battery on concrete will drain the battery. It will not drain it at all.
If the ashtray light is not working it will not drain the battery.
Bad battery or a parasitic drain
School does drain your battery because the satellite connection in school has been made to drain your battery in cell phones and any type of electronic device.
To often mount a subwoofer you will need your desired subwoofer box of choice. Once you have decided what type of box you want, then you will need to take your subwoofer and insert it into the subwoofer hole. Then you screw it down. Once this is done you take your wires and run it into the subwoofer. An amplifier is not necessarily needed, but you'll definitely want one. You will then take your amplifier and connect it to your cars battery, and then also ground it to your car.
If the alternator is installed incorrectly, yes, it can drain the battery.