I wish there was an audible chime for reds and nutes in general entering the system.
Grinding away at rocks for hours to get enough ore to reprocess into minerals to build a BB or BC, tends to be a draining ordeal.
After scanning eyes pealed to Dscan for 4+ hours, you get exhausted and drowsy.
Having an audible q to get you back to full alertness would help a lot.
Even if it was the same audible note for everyone who enters a system, red, blue, nut.
If you are in a dead end system or a quiet one, this would help a lot.
Plus if you are running sites, your focus is drawn by the rats, especially in smaller ships.