Car stereo systems today are not what they once were back in the day. For decades, people got along with a standard AM/FM radio. Later, 8 track and cassette players were added to car stereo systems. A car stereo system today is much more than a station to listen to your favorite music or ball...
I have a 2003 gmc ecsb 1/2 ton. When the truck is shut off how do I turn the radio on so it doesn't kill the battery? It comes on when I click it foward but the battery light comes on and I don't feel like being stranded. On my 93 chevy I can just turn the key one click backwards and leave it on...