No, you iPod does not use any of the vehicles electricity, it runs on it's own battery. The only way it can have any effect on the vehicle's battery is if you have a USB port in your vehicle and are charging your Ipod. In most cases the amount of energy needed to fully charge an Ipod is not enough to drain the battery to empty.
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 iPod Touch will eventually run out of battery when it is locked, but it will not drain instantly.
yes, it does, but it doesn't affect the battery too much.
A car battery in any car would drain due to a short in the electrical system.
If the ashtray light is not working it will not drain the battery.
You can get a car alarm that uses it's own battery so wont drain the car.
i normally do, before recharging
A starter does drain a battery. The battery holds a charge so that you can use your starter to start the car. After the car is started the alternator recharges your battery and runs your car and all it's accessories. If your car won't start or is having a hard time starting you can drain your battery by repeated unsuccessful attempts to start it.
If the alternator is installed incorrectly, yes, it can drain the battery.
Yes, if the relay was stuck it would drain the battery.
leaving on the radio
No.