A car stereo is a relatively compact and good source of audio entertainment. Manufacturers have taken plenty of measures to ensure this small piece of electronic equipment can deliver sound quality that is comparable to its household counterpart. There are times when you may have an extra car stereo that you do not wish to discard and would like to use in your bedroom or garage. Car stereos run on 12 volts DC electric current, but you can connect a car stereo to 110 volts AC and make it work inside your home. Writer Bio