Okay so I have an aftermarket stereo installed in my 1988 S10 blazer. It was done by pros. Last night I was leaving work and I went to plug in my phone charger which I had done before and the stereo and the lighter both stopped working almost like I blew a fuse. I checked all the fuses that I could find in the box this morning and non of them were blown I also took out the stereo to check the fuse in the back which is also just fine. ( I replaced them all just to be sure they were okay) I am having trouble finding any more fuses anywhere. Anyone have any ideas about where I should look or what this could be. Nothing else is not turning on in the car. Well thanks for any help you can give me on this one.

 

20 amp labeled horn d/m

 

Lighter plug on that model is made in a very bad way. It shorts if you plug something too deep or if it has a specific shape, and that causes the power to be cut from one of the controllers, so you loose power on the lighter plug, the radio, horn, and floor lights. That's what happens with my 89 S10 Blazer.
Or it could be the fuse holder (socket) for the 2nd controller that's not getting in good contact with the fuse. (I had that problem too)