I have a 2009 Infinti g37 journey coupe. My car comes stock with only heated seats and a heater climate controlled unit. I replaced my seats with the stock seats from a 2012 convertible g37 and they are heated/cooled. How can I make them work in my car? Would I need to replace the climate control unit with the dials or is there a way to connect it through the cables like a plug and play. Also if anyone has a wiring diagram for the seat cables that connect inside the car that could help.

Welcome to NICO! I'm not all too well versed in your vehicle, but can offer an option for you.

Here at NICO, we have Factory Service Manuals (FSM) available free to members. Here's the link to the FSM for your car: Index of /FSM/G37/Coupe/2009 and for the 2012: Index of /FSM/G37/Convertible/2012 Hopefully between the two you'll find some of the information you're looking for.