How can i connect my car stereo in my house?

I sold my car without the stereo system and realized that my car stereo is much louder than the one in my house. I would like to hook my car stereo up and play it in my house. What can i use to hook it up like the car stereo display at wal-mart or other stores?How can i connect my car stereo in my house?
You'll need a beefy and high quality 12V DC Power supply. I have had success in using computer power supplies.

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