me and my wife bought a used 07 fx35 and it's missing cup holder insert that goes into the opening between gear shifter and arm rest. any idea where i can get a replacement besides junk yard?

You can try ebay. Mine is broken in my G37 coupe as well and it's >100 at the dealership. I've seen it for $40 on ebay. Pretty crappy for a molded piece of plastic with a simple movable piece.

finally got a replacement insert. went to our dealership where we bought the car and told them about missing part. they replaced it free of charge(probably removed it from lease turn in). and also replaced rear wiper blade, also free, because the old one was missing the blade itself only had the insert left that wasn't doing much cleaning.

The insert is not available separately from the dealer, thats probably why you can't find it, you need to get the whole freakin cupholder assembly.