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1981 Cadillac Eldorado

Get all the stereo installation accessories for your 1981 Cadillac Eldorado so you can install your new stereo like a pro.

Stereo Installation Accessories for 1981 Cadillac Eldorado

If you are looking to buy a stereo, then you've come to the right place. We guarantee fitment and we offer free/discounted install accessories on nearly all our stereos for nearly all vehicles! Look at each product tile in the category listing or visit the car stereo product pages for more details.

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iDataLink Maestro RR Interface Module

Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

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Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

• Universal stereo replacement interface module
• Connects to iDataLink-compatible stereos
• Retains SWC, voice commands, etc.
• Enhances multimedia experiences with exclusive gauges, vehicle info, parking assistance, climate control, and radar detection

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35
List price $229.99
-17% $189.99

In stock

• Universal stereo replacement interface module
• Connects to iDataLink-compatible stereos
• Retains SWC, voice commands, etc.
• Enhances multimedia experiences with exclusive gauges, vehicle info, parking assistance, climate control, and radar detection

iDataLink Maestro RR2 Interface Module

Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

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Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

• Advance stereo replacement interface for select vehicles
• Offers exclusive infotainment retention
• Adds support for additional vehicles
• Enables Bluetooth programming directly from mobile device
• Retains OnStar, SYNC, Uconnect, and more

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List price $319.99
-19% $259.99

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Metra 40-SIRXM Antenna Adapter

Connect your factory SiriusXM antenna to a new aftermarket radio

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Connect your factory SiriusXM antenna to a new aftermarket radio

• Adapts factory satellite antenna connector
• Located at factory radio location to an aftermarket style connector
• Length: 3 feet
• Universal application

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List price $33.99
-29% $23.99

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Only 1 Left!

• Adapts factory satellite antenna connector
• Located at factory radio location to an aftermarket style connector
• Length: 3 feet
• Universal application

Metra 40-UV41 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for

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Connect your factory antenna to a new aftermarket radio for

• Universal Antenna Adapter
• Vehicles
• Female to female cable

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List price $14.99
-13% $12.99

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Only 2 Left!

• Universal Antenna Adapter
• Vehicles
• Female to female cable

Install Bay IBR74

Dual USB Pass Through Extension Panel

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Dual USB Pass Through Extension Panel

• Dual Male to Female USB Extension Cable
• 3 Feet Long
• Full Data Transfer
• Flush or Surface Mount Your USB Ports

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List price $37.99
-11% $33.99

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Only 2 Left!

• Dual Male to Female USB Extension Cable
• 3 Feet Long
• Full Data Transfer
• Flush or Surface Mount Your USB Ports

Metra 40-UV44 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for

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Connect your factory antenna to a new aftermarket radio for

• Universal antenna adapter
• Vehicles
• Female to two male cable

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List price $16.99
-53% $7.99

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Only 3 Left!

• Universal antenna adapter
• Vehicles
• Female to two male cable

Metra 40-UV42 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for

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Connect your factory antenna to a new aftermarket radio for

• Universal antenna adapter
• Vehicles
• Male to male cable

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2
List price $14.99
-13% $12.99

In stock

Only 1 Left!

• Universal antenna adapter
• Vehicles
• Male to male cable

iDataLink Maestro SR (ADS-MSR) Interface Module

Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

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Universal Stereo Replacement Interface Module for iDataLink Maestro Compatible Stereos

• Universal stereo replacement interface
• Retains factory steering wheel control
• Retains backup camera with any stereos
• Retains digital fade, DSP, gain, camera controls in iDataLink-ready stereos

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List price $169.99
-18% $139.99

In stock

• Universal stereo replacement interface
• Retains factory steering wheel control
• Retains backup camera with any stereos
• Retains digital fade, DSP, gain, camera controls in iDataLink-ready stereos

Metra 40-SIRXM-17 Antenna Adapter

Connect your factory SiriusXM antenna to a new aftermarket radio for

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Connect your factory SiriusXM antenna to a new aftermarket radio for

• Adapts factory satellite antenna connector
• Located at factory radio location to an aftermarket style connector
• Length: 17 feet
• Universal application

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2
List price $43.99
-45% $23.99

In stock

• Adapts factory satellite antenna connector
• Located at factory radio location to an aftermarket style connector
• Length: 17 feet
• Universal application

Install Bay IBR73

HDMI/USB Pass Through Extension Panel

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HDMI/USB Pass Through Extension Panel

• Male to Female USB and HDMI Extension Cable
• 3 Feet Long
• Full Data Transfer
• Flush Mount Your USB and HDMI Port

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List price $52.99
-11% $46.99

In stock

Only 2 Left!

• Male to Female USB and HDMI Extension Cable
• 3 Feet Long
• Full Data Transfer
• Flush Mount Your USB and HDMI Port

iDatalink Maestro ADS-MAR Wiring Interface

Factory Amplifier Replacement Interface for

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Factory Amplifier Replacement Interface for

• Factory digital amplifier replacement interface
• Compatible with
• Works with vehicle specific T-harnesses
• Compatible with an iDataLink-ready amplifier
• Supplies control data and audio

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1
List price $144.99
-17% $119.99

In stock

• Factory digital amplifier replacement interface
• Compatible with
• Works with vehicle specific T-harnesses
• Compatible with an iDataLink-ready amplifier
• Supplies control data and audio

Metra MPS-WHIPM Antenna Adapter

Connect your factory antenna to a new aftermarket radio

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Connect your factory antenna to a new aftermarket radio

• Whip antenna mount is designed to work with roll cages/metal tubes • Adjust to fit most angles
• Fits 1 1/2in, 1 3/4in, 1 7/8in, and 2in tubes
• Comes with rubber inserts
• Powder coated gloss black
• Powder coated gloss black

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List price $46.99
-11% $41.99

In stock

• Whip antenna mount is designed to work with roll cages/metal tubes • Adjust to fit most angles
• Fits 1 1/2in, 1 3/4in, 1 7/8in, and 2in tubes
• Comes with rubber inserts
• Powder coated gloss black
• Powder coated gloss black

Metra 40-VW18 Antenna Adapter

Connect Aftermarket Antenna to Factory Stereo with Flat Connector

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Connect Aftermarket Antenna to Factory Stereo with Flat Connector

• Universal Antenna Adapter
• Adapts vehicle's factory stereo to use with an aftermarket antenna
• Easy installation, no major modification required

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1
List price $24.99
-36% $15.99

Available

Ships in 10-14 days

• Universal Antenna Adapter
• Adapts vehicle's factory stereo to use with an aftermarket antenna
• Easy installation, no major modification required

PAC XC036

36" Antenna Extension Cable

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36" Antenna Extension Cable

• 36" antenna extension cable

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List price $24.00
-75% $6.00

Available

Ships in 10-14 days

• 36" antenna extension cable

PAC XC024

24" Antenna Extension Cable

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24" Antenna Extension Cable

• 24" antenna extension cable

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List price $24.00
-79% $5.00

Available

Ships in 10-14 days

• 24" antenna extension cable

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    FAQ for Aftermarket Stereo Installation Accessories in 1981 Eldorado

    Q: Can I upgrade or change the Aftermarket Stereo Installation Accessories in 1981 Cadillac Eldorado?

    A: Yes this page includes all the best Aftermarket Stereo Installation Accessories that work in your Eldorado.

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    Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:

    • You see only parts engineered for your exact vehicle
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    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.