Jusst for the point of doing research, I checked out the warrantydirect.com website for a new Genesis. There IS coverage available to include all the electronics, but it's $1831 (in Florida) for a 7 yr/100K mile package. Here's some verbiage for the inclusive part of the package:
LuxuryCare+ Coverage Statement
We will pay the repair facility of your choice for the reasonable cost to repair or replace any part of your vehicle where a failure has occurred, except for those items listed in the exclusions section.
In addition, LuxuryCare+ includes coverage for the following parts:
Emissions Systems - Air Fuel Ratio Sensor, Air Induction System, Air Pump, Anti-Knock Sensor, Barometric Pressure Sensor, Canister Purge Solenoid, Deceleration Valve, EGR Recirculation System, EGR/EFE Thermal Vacuum Switch, EGR/EFE Valve, Engine Oil Fill Cap, Fuel Fill Pipe and Cap, Fuel Fill Neck Restrictor, Fuel Receptacle, Fuel Sensor, Fuel Tank Pressure Control Valve (PCV), Fuel Temperature Sensor, Idle Air Control Valve, Intake Air Resonator, Intake Air Temperature Sensor, Intake Manifold, Manifold Air Pressure (MAP) Sensor, Mass Air Flow Sensor, Oil/Air Separator, Oxygen Sensor, PCV System, Positive Crankcase Ventilation Valve, Powertrain Control Module (PCM), Secondary Air Injection System, Throttle Body Assembly (MFI).
GPS Navigation Systems - Factory Installed Navigation display unit, navigation control module, navigation system wiring harness.
DVD/Entertainment Systems - Factory Installed LCD screen (10" or less), RF modulator, video cassette player with auxiliary inputs (No recording capability), digital video disc player, power converter.
Phone Systems - Factory Installed Charger/cradle, microphone, speakers, phone.
Internet Access Systems - Factory Installed Power converter, satellite receiver, satellite dish or wireless receiver (Metropolitan areas only).
Airbag Electronics - Airbag modules, sensor(s), airbag cable/contact coil, clock spring, on/off switch.
Not sure if this is worth it since it's only 7 years (I only drive about 10K/yr).