If you install after market fog lights, honda can clearly say your electrical warranty is finished. You have to install from the dealer to maintain warranty. I personally would do that as I rather have genuine products than after market copies.
Navigation/camera you can get it from tracking world. They supply it to honda. So if you get it from them, it wont void your warranty, they will give you a separate warranty for the navigation unit. Wiring is already included in the car for the back camera, just a matter of them connecting it.