My head unit works fine but it's just not getting the proper constant power so everytime i turn it on i have no presets and my eq is messed up and basically everytime i turn it on its like the first time its been turned on. (thats how it acts.) I need to know where to get a constant power or how to trouble shoot the issue.
Normally when an aftermarket stereo is installed the yellow wire is for constant power gets connected with the ignition power wire and what you said is what happens in result. get a multimeter, set it onto dc volts and put the black lead onto something metal and then id use the red lead to test wires for a constant 12volts when key is in the off position. Once a wire is found connect it to the yellow wire of the stereo
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