How can I set the levels on my stereo so they stay set the way I want them? on 2007 Chevrolet Malibu

Every time I turn the stereo on the base is way up so I have to adjust it every time I turn it on. How do I get my settings to stay the way I set them at all times? It's quite frustrating

Asked by for the 2007 Chevrolet Malibu
See owners manual.
I have. Didn't help.