can you tell me or give me any pictures of where exactly the heater core is located for my vehicle? i'm asking because i dont know if i have to change the core or tubes. i do not have pictures rite now. but theres two tubes that cracked. and is leaking a lot of radiator fluid into my car. the tubes come from inside the dashboard and end behind the engine. i havent opened the dash board fully yet. can help? thanks in advance.