Normally, working people do not have the money at last day of the month. But, they like to install the car stereo system but, they do not have the money; here very easy steps are provided to install the audio system for our car. Check the stereo is correctly fitted in to the slot or not. If not means choose the appropriate stereo otherwise rearrange the slot. Gather the tools used for assemble the stereo systems like screw drivers, electrical tapes, spanner, tester, and wire tapes. Take a look the dash panel of the car, it shows that how to remove the old radio in the car. Disconnect the negative wire from the battery and remove the old radio system. Give the wire connections to the speakers (i.e.) connect the positive wire of the stereo and the speaker. And make negative connection to the stereo with the speaker. Connect the 12 plastic power wires carefully without affecting the lethal shock. Connect all the wires with a single connector and assemble the system in to the slot. Again connect the negative cable in the battery. Finally, Switch on the power supply and checks that all the speaker is properly works or not. And make a screw connection to all speakers and stereo amplifier.