Not sure if anyone has ever experienced this or if power has anything to do with it so here goes: in very recent times, twice or thrice I noticed when switching my car off after driving it that the radio would switch off but then suddenly come back on in a second. Other times it would not do this. I turn the key from ON to ACC so the radio should remain on. It does normally but now and then I notice it turn off then come back on. So I figured maybe there's a loose connection in the head unit's harness which I can fix by pulling it out and reconnecting it properly. Then the other day I noticed my driver's window lost its auto setting as if I pulled the battery which I didn't...I checked the battery terminals and both leads are tightly connected. The battery is only 2 months old.

So, what could be up?

 

My s2k does this. Ive never really paid much attention to it. Its done it with aftermarket radios ive had in, and i think it did it with the stock, though i cant remember. I think its just how the car handle power when coming back to idle, but thats just my guess.

 

Thanks for responding At least you experience it too. It is kind of weird though. I was alarmed when my window auto setting cancelled twice suddenly. I'm wondering if maybe we need to replace the grounding/negative wire coming from the battery?

 

I discovered the problem. The negative battery cable was really bad. Corroded underneath more so than above. The cleaning I did was not going to remedy it clearly so I replaced the cable and terminal on Saturday and now the problem is non existent! Checked alternator and it's charging well - 14.5 volts at idle.