most of the time you will have an extra wire or two make sure you cap them off or tape them so they dont ground out. and as far as the noise in your speakers you have a bad ground and if you have an amp then you need to separate your wires running to your amp cause they are interfearing with each other and your getting road noise.
you need to go into sound playback then you need to find speakers and set as defoult device
You need to install the drivers for the sound card your computer has installed in it.
Blenders, doorbells, speakers, and probably anything that is related to speaker systems or have speakers in them. Any device with a motor, generator, speaker or microphone, or a transformer has an electromagnet installed.
A speaker, whoever makes it, is an output device
Speakers and Headphones are output devices. A microphone, sometimes integrated with speakers, is an input device.
Output.
It depends on what type of sound device you buy. Some have speakers while others don't.
System Restore.
Speakers are considered to be an OUTPUT device, as the signal is traveling out of your device, and into the speaker.
System Restore
Speakers are an output device.
Sometimes GPS systems can be installed before purchases, though this is usually an optional, extra cost device from the manufacturer/dealer or is only included with luxury autos (such as BMW).