does anyone know where I could get a voltmeter?

I need a volt meter for my car. Preferably one that goes in the car lighter. I got a new car and instaled a system already, but my car doesn't have a voltmeter...If you know of a store where I can get one, help me out...I'm not very familiar with online shopping...

anybody?

Autozone, advanced auto. Ive seen the cig lighter ones at those places and wally world. I just bought a gauge last time i needed one.

my hu comes with one built in.

cool, thanx man