02 Infiniti G20: hetr ac clok stero lite out. Wich fuse? Stero lite wrks on acc2

Thank you. I tried spraying contact cleaner into egnition key hole but it didn't help. When I turn key to position 'Acc 2' the stereo part of lights come on (but not heater/AC part). Then after I turn to position '3 ON ' and '4 START' the stereo lights go out. And then when I turn the car off and go back by position 'Acc2' in the opposite direction the clock comes on. So you reckon I need a whole new egnition switch?

I am doubtful of any benefit of doing so since the keyhole does not hold any electrical components. The key cylinder interacts with the electrical ignition switch which is separate.

Thanks... I figured it out and wow I feel like an idiot--I have realized that when I was recently cleaning my car I inadvertently turned down my dashboard lights and the other lights in question. I had not known dashboard lights and the stereo /climate light were on the same dimmer switch. I discovered it tonight when I got into my car and the dash lights didn't light up. When I tested the dimmer--all the lights came up. Advise others to check their dashboard lights dimmer knob first thing. Thanks