tach, speedometer, temp gagues not working neither are the turn sugnals! on 1995 Mitsubishi Galant

ok so i was installing a cd player the other day and i acceidtally cut some wires in there obviously going to the instrument panel. i have since fixed them and also changed and checked all the fuses. But still nothing the whole thing theres not action as well as the turn signals dont work. i just need an easy fix as i am trying to sell it. please any help suggestions.

Asked by for the 1995 Mitsubishi Galant