Which after market head deck can I yous in my Mitsubishi Galant 96 ? & How do I install it ?

Go on sonic electronix.com u can find any headunit to fit ur car n very reasonable prices

I install car audio on the side. N u need a wire harness to plug into the factory harness n then to take the harness from the new headunit n wire it by the colors i can tell u the wire colors if u want me to? I have a question for u are installing a sound system in the car

I have the colors for the wire harness.1. Gray set are front right speakers.2 white set are left front speakers 3. Violet set are right rear speakers 4. Green set are the left rear speakers. N the red wire is ignition 12v battery is yellow wire black is ground n if u have amp going in the wire for ur remote is blue