anyone know what type of LEDs fit , if I need to change the sockets, and where to find the neccesary info/parts? Just thought it would look cool to get rid of those dim yellowish lights in the dashboard and center console and replace them with either blue/red LEDs

LED's have a rather monochromatic spectrum, and the eye tends to find that unpleasant when used as general illumination. That is fine for a warning light, of course. White LED's use a secondary flourescent phosphor, stimulated by a blue or UV LED. This is broader specrum, but I doubt if that is the effect you want.

Steve

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'91 MB 190E 2.3
'08 RAV4 Ltd 3.5
'83 Lazy Daze m'home 5.7