I got the LR4 HSE Lux, sans cameras. Is this something that can be installed by the dealer or do the trucks have to have it built up that way?
It won't be easy or cost effective to retrofit this. Cameras are all digital cameras.. Not a $20 a piece made in china stuff. They are probably several hundreds each if you try to buy them new from the dealer. Then the digital signal cables. And the controller module. Don't even want to know the price.
I am having same issue so my dealer replaced couple of cables per TSB then noticed it's still having some issue so they ordered a new module. another few month out I guess. They had to take center console and all front and rear seats to replace cables.
Even if you managed to install all hardwares and stuff (you need front bumper and side mirrors as cameras are tightly integrated), you still have to enable it in the car configuration file which you have to have a special computer equipment to hook up to the main computer.