u/PaleontologistClear4

Homemade protein pancakes, made with oat flour, eggs, homemade yogurt, milk, avocado oil, and protein powder.

So my speakers have been in storage for a while (climate controlled, never in the Sun), and pulling them out the other day I noticed that this rubber trim piece that goes around the front of the speaker is starting to deteriorate, it's become very sticky like the rubber is breaking down.

What are my options on how to take care of this?

Trying to diagnose a random intermittent idle issue, I'll be sitting still and the car will be idling fine, then start hunting up and down, sometimes almost stalling, it has actually stalled before when the AC is on and I come to a stop, and then the idle will return to normal.

My check engine light says I'm running rich, something I'm going to be working on with my tuner, he advised that I check my spark plugs and this is what I found. For information, I am running a one-step colder plug with my setup.

My internet research says I'm running lean despite what my check engine light says. I don't believe it's a vacuum leak as I've checked everything and this issue started randomly out of the blue. It doesn't happen all the time, there's no pattern to it.

Thoughts?