Find car audio that fits your 1991 Oldsmobile Eighty Eight Royale

---

• Antenna adapter for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female connector on other end

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

• GM / Chevrolet Antenna Adapter
• Aftermarket Antenna Male (Motorola Plug) to Factory Radio Female (Proprietary Plug)
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

• Single-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

• Antenna adapter for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac
• Use for replacing vehicle radio
• Male Motorola connector on one end
• Female connector on other end

• Factory Radio with Mini "Barbed" Connector to Aftermarket Antenna Adapter
• select 1958-2024 vehicles from Chevrolet, GMC, Pontiac Vehicles

• Connects aftermarket stereo to factory antenna
• select 1958-2023 vehicles from GMC, Chevrolet, Pontiac Vehicles
• Ensures optimal signal quality

• Single-DIN Dash Kit
• Painted scratch-resistant black
• High-Grade ABS plastic construction
• Original factory-like fit and finish
• Includes installation instructions

• Direct Connection to the factory harness
• Color coded wires for easy installation
• No cutting or splicing required

• Barbed Antenna Adapter Kit
• select 1983-2014 vehicles from GMC, Chevrolet, Pontiac Vehicles
• For the addition of a CD changer or other external devices with built-in FM modulator

• Wiring Harness For Select 1988-Up GM Vehicles With 21-Pin OEM Radio
• 21 Pin Plugs Into OEM Radio
• Power/4 Speaker
• Harness Designed To Plug In Factory Radio

• 300 watts Peak Each, 100 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome zero-protrusion tweeters with neodymium magnets
• Polypropylene cone material with Extended Voice Coil (EVC) technology
• Impedance: 4 ohm
• Sensitivity: 90 dB

• Speaker adapter for select 1955-2025 vehicles from Chevrolet, Ford, Dodge
• For the installation of 5.25” or 6.5” speakers
• One pair of adapters included in each package

• 450 watts Peak Each, 150 watts RMS Each
• 1/2" PEI (Polyetherimide) Balanced Dome tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 92 dB

• 210 watts Peak Each, 70 watts RMS Each
• 1-13/16" Edge Driven Dome tweeters
• Polypropylene cone material
• Impedance: 2.3 ohm
• Sensitivity: 92 dB

• 180 watts Peak Each, 60 watts RMS Each
• 1/2" PEI (Polyetherimide) Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 91 dB

• Single DIN Digital Media Receiver
• 1-line Digital LED Backlit Display with RGB illumination
• Control music/other apps via iPhone and Android
• 3 sets of 2 volts preamp outputs
• 3-Band Parametric Equalizer
• SiriusXM Satellite Radio Ready
• NFC-compatible for select Android devices
• Built-in amplifier

• 300 watts Peak Each, 100 watts RMS Each
• 1" Magnesium Hard Dome tweeters
• Reinforced Glass Fiber cone material
• Impedance: 4 ohm
• Sensitivity: 88 dB

• 55W x 4 Chan. MAX / 20W x 4 Chan. RMS
• 3 Sets of Preamp Outputs
• 10-Band EQ10 Eqaualizer
• Dynamic Stage Organizer optimizes the sound stage from your door panel speakers
• Time alignment maximizes music based on where you're seated, adjustable