Have a problem. Seems battery loses connection. Here is what I have observed

radio needs code after sitting all night.

intermittent loss of electrical while driving. Very brief.

both cables are tight with no corrosion. Positive side with other stuff seems wobbly. Cable tight though. Is this like a fusible link type thing?

 

I know what you are kind of talking about, on my car while driving it will appear as if the cars electrical systems goes *blip* without power for a micro second.

I have no idea what is causing that issue my car does the same thing. Although I never had it where the radio was drained. That seems like a bad battery issue or something draining.

At first I thought it was a bad battery on my car. I have since replaced mine (twice now since owning this car from 9/2019). Could be a bad alternator or relay somewhere. I haven't replaced anything yet besides that.

 

I jiggled all kinds of things last night, trying to get the headlights to go out for a second. No success.

This morning it didn’t do it once, but when I started it up the check engine light was on. Maybe I’ll get a hint

 

Check all your actual ground cables and mounting locations to make sure they are clean. Also look at the block your power cable is attached to, there is a bunch of power connections in there that can get corroded, maybe one of them is rotten so bad or has so much corrosion under it that it has an intermittent problem. I looked at mine a few weeks ago while replacing my starter and thought to myself it could cause me issues down the road. I’ve attached a pic below.