i dont know what the problem is, it is simple to retrofit wide screen monitor, You do not need to install the Nav computer if you dont want to, you can just install the Video Module, and that will generate the RGB signals. You will need a retrofit harness old to new style($60) and then install the kit. Plan to spend $100-200 for wiring harness. $ 5-700 for used onboard monitor, and $2-300 for a used video module, or $400 for a used nav computer.