I have a 1991 E30 325i sedan, power windows, locks, moonroof, fog lamps, u know all the standards of it's day, 92k miles, all stock except the head unit, needed a cd player, can't live with a tape deck!!
i got a jensen MP3510, mp3 capable head unit, i know it is not the best in the world, but i got it because it was over 40 watts peak per channel, mp3 capable, and satellite ready which i probably will not ever get. plus it was a cheaper mp3 head unit so.
mine will be needing exhaust soon, and in the next 2 days i will be changing the spark plugs, thinking about bosch platinum plugs. . .
in all my time with the E30, which i love so much, i have never seen angel eyes for them, always for the e36 and above. to tell you the truth i never see much for the E30. . . but there is stuff out there. . ..