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OEM Navigation System (Series 1)

The Mazda RX-8 Series 1 (2004-2008) was available with a factory DVD-based navigation system featuring a motorized flip-up LCD screen. This was a standalone option on all trim levels, priced at approximately $2,000 USD. Due to the high cost, it is fairly rare on the used market. (Reddit r/RX8)

:::info Series 2 does not have this The flip-up navigation hood was Series 1 only (2004-2008). The Series 2 (2009-2012) does not have the same motorized nav hood and is not compatible with the retrofit approaches described here. (RX8Club) :::

System Components​

The factory navigation system consists of several components spread throughout the car:

ComponentLocation
LCD displayMotorized flip-up hood, top of dashboard
Navigation control panelCenter console, just behind the gear shifter (joystick + buttons)
DVD-ROM map driveBetween the rear seats (also houses the navigation computer)
GPS antennaInside the dashboard
Gyrosensor & speed sensorIntegrated into the navigation computer

The system uses GPS satellite signals combined with vehicle speed and a gyrosensor to track position and provide turn-by-turn guidance. (2008 RX-8 Navigation Owners Manual (PDF))

Display Specifications​

SpecificationDetail
Display typeLCD with CFL (compact fluorescent) backlight
Approximate diagonal~7"
Width (including metal cage)177 mm
Signal typeRGB with composite sync
Horizontal refresh15 kHz
Vertical refresh30 Hz (interlaced)
TouchscreenNo
Auto-dimmingYes (headlight signal + light sensor)
MotorizedYes (retracts flush into the dashboard)

The display uses a composite sync signal instead of separate horizontal and vertical sync lines, which makes it incompatible with standard VGA or video inputs without a converter. The CFL backlight inverter is marked "CAUTION! HIGH VOLTAGE!" on the circuit board. (RX8Club — Nav Unit LCD Screen Specifications, New Screwdriver — Disassembling Navigation Hood)

Electrical Connectors​

The LCD assembly connects to the car via a wide FPC (flexible printed circuit) cable routed through the hollow hinge of the motorized hood. Key pins on the main connector: (New Screwdriver — Tapping Power from RX-8 Navigation Hood)

PinFunction
1QBattery (always-on +12V)
1OAccessory power (+12V when key in ACC/ON)
GroundMultiple shield/ground wires (3+ on FPC + beefy ground wire through hinge)

Motorized Hood Mechanism​

The retract mechanism is controlled by the LCD circuit board — not a separate module. Key mechanical details: (New Screwdriver — Disassembling Navigation Hood)

  • The motor shaft is D-shaped (round with a flat), ensuring correct gear alignment on reassembly
  • There are alignment marks (white dot on gear, marked tooth on track) for proper reassembly
  • The motor will refuse to operate if the actuator is outside its expected range of motion (safety feature)
  • The geartrain is back-drivable: the hood angle can be adjusted manually without damaging the motor or gears
  • The hood hinge is hollow, which is useful for routing replacement wiring

Limitations​

  • Map updates are essentially non-existent — the DVD-based maps are decades out of date. Your phone is a far better navigation tool. (Reddit r/RX8)
  • Not compatible with Yatour — the Yatour digital music changer (YTM06-MAZ1) does not work with navigation-equipped vehicles. (Manuals+)
  • DVD drive takes up space — the navigation computer and DVD drive sit between the rear seats

Retrofit: Modern Screen in the OEM Nav Hood​

The motorized hood is popular among owners who want to install a modern screen (tablet, CarPlay/Android Auto receiver) while retaining the factory look. A 7" standalone receiver display area is nearly identical to the OEM screen — approximately 2 mm narrower and 1 mm shorter. (RX8Club — Standalone CarPlay/Android Auto in Factory Nav Hood)

What Fits​

DeviceFitment
7" CarPlay/Android Auto standalone receiverNear-perfect fit, minor trimming required
Nexus 7 (2013)Fits with ~3-4 mm clearance per side
Samsung Galaxy TabFits with modification
Raspberry Pi + 7" DSI touchscreenFits (DIY project)

Key Considerations​

  • Retraction motor: The LCD circuit board controls the motor. If you remove the LCD, you must keep the circuit board to retain motorized functionality. Alternatively, an Arduino can emulate the hood control functions. (Wonk — Nexus 7 Android Tablet in Mazda RX-8 Nav Hood)
  • Electrical interference: The CFL backlight inverter on the LCD circuit board emits electromagnetic noise that can cause phantom touches and display flickering on capacitive touchscreens. Metal shielding is recommended between the old board and the new screen. (New Screwdriver — Integrated Test Failed Due to Interference)
  • Trim modification: Some cutting of the internal plastic mounting posts is required to fit a wider modern screen. The cuts are hidden when reassembled.
  • Power: A buck converter (e.g. LM2596) can tap into the ACC power line (pin 1O) to provide 5V for USB-powered devices. (New Screwdriver — Tapping Power)
  • Audio: Early (2004) RX-8s do not have an AUX input. One must be added (e.g. Sylfex AuxMod, now discontinued) or use an FM transmitter. Later models may have AUX from the factory.
  • Right-angle adapters: Space behind the hood is extremely tight. Right-angle USB-C, 3.5mm audio, and camera extension cables are essential.

Advantages vs. Metra Kit​

Installing a screen in the OEM nav hood is an alternative to the Metra double-DIN kit approach (which replaces the entire center console head unit). Benefits:

  • Factory interior appearance maintained
  • Steering wheel controls and HVAC stay untouched
  • Screen is higher up, closer to the driver's line of sight
  • Potentially retains motorized hood functionality

Drawbacks:

  • No automatic dimming from headlights (unless the replacement screen has its own light sensor)
  • No vehicle speed data for dead-reckoning GPS
  • Cannot display custom text on the factory LCD status bar (Metra kit can)

(RX8Club — Standalone CarPlay/Android Auto in Factory Nav Hood)

Disassembly Procedure (Summary)​

To access the navigation LCD assembly, you must remove overlapping interior trim pieces in sequence. The full procedure is documented in detail by the RX-8 community: (New Screwdriver — Removing Navigation LCD Assembly)

  1. Remove shift knob (manual) or shift panel (automatic)
  2. Pry up upper console panel (clips only), disconnect nav controls and seat heater plugs
  3. Remove ashtray panel (2 screws), disconnect cigarette lighter and illumination
  4. Remove center panel with audio/HVAC (2 screws + side bolt from driver's footwell + 4 clips)
  5. Remove center ventilator grille (2 screws)
  6. Remove navigation LCD assembly (2 screws + electrical connectors)

:::warning Gentle with the glossy audio panel The glossy black audio/HVAC control panel is held by clips that require significant force to release. Pulling too hard can rip out heat-set inserts and break internal connectors. Use prying tools and patience. :::

Sources​