I have a 2005 Ram 1500 quad cab with no console. I bought a console off ebay and it has the wires coming off it cut. The wiring for this unit dead ends at the passenger side A pillar. Anyone know where I can get the wiring harness or how to hook this up. All sensors etc appear to be in truck alread

 

All the sensors will be, because they are used for other applications (i.e., the tempsesnor behind the grill is used for air inlet temp to the engine). The actual harness to the console (so far that has been my experience) is part of the larger dash harness (2005 parts manual supports this). You will have to make one, attaching the wires you have to longer ones and tapping them in. This seems to work for anything 02-05. I know it's Jeep specific, but many pieces and wiring are the same across different Mopar platforms.