05 fx35 back up Camera controller installation help

[ThePublisher]

I had my FX diagnosed at Nissan (local Infiniti service is awful) and was told my backup camera wasn't working on because of a bad controller. I found a used controller online, but after many searches can't find instructions for replacement. Anyone have any insight or at least know where this controller is located?

Thank you in advance.

 

[la_fx35]

The display control unit is behind the glove box. The rear view camera control unit is behind the radio stack.

 

[J3FF3R$0N]

 

[ThePublisher]

Thank you two for the help. I was able to swap out the replacement controller in about 25 minutes, much better than the 1.5 hours Nissan wanted to charge. However the replacement controller didn't change anything. I still get a blank screen that says 'please turn around before backing'. My next guess is that the camera unit itself is bad. I doubt I will get any more diagnostic help from Nissan having not hired them to put in the controller.
Any ideas?