O2 Sensor for 2004 Town & Country

Can someone advise where I can find the O2 sensor(s) for a 2004 Town & Country. I beleive there are two. Please help

[b]There are two O2 sensors on your vehicle.

The first one will be located before the catalytic converter. This can be mounted on the exhaust manifold or on a pipe after the exhaust manifold. The second O2 sensor will be located on the exhaust pipe right after the catalytic converter.

Each manufacturer locates the first O2 sensor at various locations. So it’s a matter of checking out the exhaust components from the exhaust manifold on back to locate this sensor. But the second sensor is always located after the catalytic converter.

Tester[/b]