i have a 2007 charger with 3.5i v 6 and wonted to know where is the thermostat

 

Follow the lower radiator hose to the engine block, its inside the t-stat housing.

 

Welcome to the forum trubama.

Here's a little information from the manual: The thermostat on the 2.7L and 3.5L engines are located on the lower left side of engine, near the front. The thermostat on both engines are on the inlet side of the water pump.

Take a look at the attached pic it details the t-stat removal.