cable TV
TV antenna
signal sources could be connected to a TV tuner adapter card
No the higher voltage could damage the device connected to it.
No, the wireless mouse adapter was meant to receive the signal from the mouse only. This is because there are many wireless devices and your adapter was designed only to pick up the one registered device. Even if you could donate the mouse responder to the router, the adapter would expect the router to send it mouse specific commands only.
There are many online sources for new power adapters. First of all, you could try the company that your computer is from. If that fails, you could always try websites like Amazon or EBay.
It could refer to the charger or the headphone connector. You may need an adapter to mate the connector to the device.
The antenna or the cable between it and the radio probably has a short to the body of the van.
To conduct an electric signal from one point to another.
If you mean Data, then the part that receives the signal would be the network adapter. This could be the wireless adapter on a laptop or the Ethernet port on a regular desktop computer. Although, now a days most have both options. If you mean power, the power supply draws the power from your outlet and sends that power through out the motherboard and to individual hard drives, optical drives, SD card readers..etc
Sources with different voltages should never be connected in parallel, you would have a difference of potential. Any time you have a difference of potential connected together you will have sparks, which could cause the batteries to explode.
Could be a fuse or could be a bad bulb. See sources and related links below for bulb part numbers.
Burnt out lamp, fuse, switch in that order. See sources and related links below for bulb information.
There are mobile home and Vans that have been set up with TVs and a PS2 could also be connected if they also are set to have the additional power for the PS2. The PS2 is not a Portable Playstation and will not be cheap to purchase the equipment needed for it to be used it a vehicle