Been looking into aftermarket upgrades for my 09 Accord. Tons of great options but NOT if you have the factory DVD navi system that I have.

Does anyone know of any kind of upgrade that can be done? I find it baffling that the options I have found won’t work with the factory navi system.

Is this due to the aftermarket options not physically configuring to the area where the navi screen is? Or is it more a technical issue?

Any answers or insight is much appreciated!