Most common places for those cars to leak coolant is heater core that would leak coolant on passenger side floor board up front. Oil cooler thats under the intake plentuim on the driverside u can look under the plentuim and see the plate that covers the cool that plate leaks. Also ur thermostate housing thats on the passenger side under ur intake plentuim. Ur water pump thats under ur timming belt cover the pulley sticks out of the cover its hard to see them leak alot of times u have to remove the cover to see them leak. Sometimes u can go under the car and the water pump leaking from underneath the car. Also the radiator leaks sometimes but not as often as the other places mentioned. Also check the heater hoses at the back of the engine and the hoses going to the heater core at the firewall for leaks. Ur best bet is to pressure test the system with a cooling system pressure tester. Let me know what u find.