I need to replace the heater core on my 1994 chevy S10. Where is it located? on 1994 Chevrolet S10

Some report it is under the passenger side dashboard. other reports are directly in the middle. Also, the heater core hoses have been removed. I am not sure where the route of connection is from the radiator to the core?

Asked by for the 1994 Chevrolet S10
look next to your ac unit under the hood its the big black contanierto the left