Garage
Shop

Shop all 1991 Pontiac Trans Am Car Audio, Speakers, & Electronics

Loading...
Filters
filter-icon Filters & Sort

Metra 40-GM10

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

40-GM10 big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
38
Was $7.99 Details
$6.99

In stock

• 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

Metra 70-1858 Wiring Harness

Install a new car stereo in select 1986-2005 vehicles from GMC, Chevrolet, Pontiac

70-1858 big
Go to item page Right Arrow Icon of Right Arrow

Install a new car stereo in select 1986-2005 vehicles from GMC, Chevrolet, Pontiac

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
60
Was $6.99 Details
$5.99

In stock

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

Scosche MDA1B Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

MDA1B big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
361
Was $8.95 Details
$5.99

In stock

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

Metra 44-PW22 Antenna

Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Chrome)

44-PW22 big
Go to item page Right Arrow Icon of Right Arrow

Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Chrome)

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Chrome

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
3
Was $129.99 Details
$116.99

In stock

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Chrome

Scosche GM02B Wiring Harness

Install a new car stereo in select 1958-2023 vehicles from Chevrolet, GMC, Pontiac

GM02B big
Go to item page Right Arrow Icon of Right Arrow

Install a new car stereo in select 1958-2023 vehicles from Chevrolet, GMC, Pontiac

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
243
Was $8.99 Details
$7.95

In stock

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

Metra 44-GM935 Antenna

Replacement Antenna for Select Multi Application GM Vehicles

44-GM935 big
Go to item page Right Arrow Icon of Right Arrow

Replacement Antenna for Select Multi Application GM Vehicles

• Replacement Antenna for Select GM Vehicles
• Universal with 5 Fixed-Angle Bases
• 31" Mast

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
5
Was $62.99 Details
$55.99

In stock

• Replacement Antenna for Select GM Vehicles
• Universal with 5 Fixed-Angle Bases
• 31" Mast

Metra 99-4544 Dash Kit

Install a new Single-DIN car stereo in select 1958-2023 vehicles from Chevrolet, GMC, Pontiac (Black)

99-4544 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in select 1958-2023 vehicles from Chevrolet, GMC, Pontiac (Black)

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
19
Was $33.99 Details
$29.99

In stock

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

Metra 40-GM12

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

40-GM12 big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
10
Was $16.99 Details
$14.99

In stock

• 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

Metra 44-PW22B Antenna

Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Black)

44-PW22B big
Go to item page Right Arrow Icon of Right Arrow

Replacement Power Antenna for Select GM, Nissan, and Ford Vehicles (Black)

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Black

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
1
Was $213.99 Details
$191.99

In stock

Only 1 Left!

• Universal Replacement Power Antenna
• Fully Automatic
• Customer Mounting Bases Included
• Color: Black

Scosche MDAB Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

MDAB big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1958-2023 vehicles from GMC, Chevrolet, Pontiac

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
21
Was $8.95 Details
$6.99

In stock

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

Metra 70-1858-1 Wiring Harness

Install a New Car Stereo in select 1987-2008 vehicles from GMC, Chevrolet, Pontiac

70-1858-1 big
Go to item page Right Arrow Icon of Right Arrow

Install a New Car Stereo in select 1987-2008 vehicles from GMC, Chevrolet, Pontiac

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $1.80 in rewards to spend later

empty

found car based on your search
This product fits your 1991 Trans Am
Was $19.99 Details
$17.99

In stock

Only 3 Left!

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

Metra 99-3042 Dash Kit

Install a new Single-DIN car stereo in select 1982-1994 vehicles from Chevrolet, Pontiac, Saturn

99-3042 big
Go to item page Right Arrow Icon of Right Arrow

Install a new Single-DIN car stereo in select 1982-1994 vehicles from Chevrolet, Pontiac, Saturn

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
3
Was $33.99 Details
$29.99

In stock

Only 3 Left!

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

Metra 40-GM30 Antenna Adapter

Connect your factory antenna to a new aftermarket radio for select 1983-2014 vehicles from GMC, Chevrolet, Pontiac

40-GM30 big
Go to item page Right Arrow Icon of Right Arrow

Connect your factory antenna to a new aftermarket radio for select 1983-2014 vehicles from GMC, Chevrolet, Pontiac

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This product fits your 1991 Trans Am
2
Was $13.99 Details
$11.99

In stock

• 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

Metra 71-1858

Reverse Wiring Harness for Select 1988-1994 GM Vehicles

Go to item page Right Arrow Icon of Right Arrow

Reverse Wiring Harness for Select 1988-1994 GM Vehicles

• 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

empty

found car based on your search
This product fits your 1991 Trans Am
2
Was $25.99 Details
$22.99

• 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

Limited time!

Kicker CSC65 (46CSC654)

600W Peak (200W RMS) 6.5” CS Series 2-way 4-ohm Coaxial Car Speakers (CSC654)

CSC654 big
Go to item page Right Arrow Icon of Right Arrow

600W Peak (200W RMS) 6.5” CS Series 2-way 4-ohm Coaxial Car Speakers (CSC654)

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Adapter/Wire Harness available and sold separately

found car based on your search
Fits the following location in your 1991 Trans Am
108
Was $99.99 Details
Save $23.03
$76.96 /pair

In stock

Limited time!

Kicker CSC693 (46CSC6934)

900W Peak (300W RMS) 6x9” CS Series 3-way 4-ohm Coaxial Car Speakers with Integrated Midrange

CSC693 big
Go to item page Right Arrow Icon of Right Arrow

900W Peak (300W RMS) 6x9” CS Series 3-way 4-ohm Coaxial Car Speakers with Integrated Midrange

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
install icon

Adapter/Wire Harness available and sold separately

found car based on your search
Fits the following location in your 1991 Trans Am
  • Rear Seat Side Panel
28
Was $149.99 Details
Save $39.03
$110.96 /pair

In stock

NVX ESP65

360W Peak (120W RMS) 6.5" E-Series 2-Way Coaxial Speakers with 13mm PEI Dome Tweeters

ESP65 big
Go to item page Right Arrow Icon of Right Arrow

360W Peak (120W RMS) 6.5" E-Series 2-Way Coaxial Speakers with 13mm PEI Dome Tweeters

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

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $4.50 in rewards to spend later

install icon

Up to $11 savings on install accessories you need

found car based on your search
Fits the following location in your 1991 Trans Am
7
Was $53.99 Details
$44.99 /pair

In stock

JL Audio C1-650x

150W Peak (100W RMS) 6.5" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

C1-650x big
Go to item page Right Arrow Icon of Right Arrow

150W Peak (100W RMS) 6.5" Evolution C1 Series 2-way 4-ohm Coaxial Car Speakers

• 75 watts Peak Each, 50 watts RMS Each
• 3/4" Silk-suspended Aluminum Dome ferrofluid-cooled tweeters with neodymium magnets
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $12.00 in rewards to spend later

install icon

Up to $63 savings on install accessories you need

found car based on your search
Fits the following location in your 1991 Trans Am
31
$119.99 /pair

In stock

• 75 watts Peak Each, 50 watts RMS Each
• 3/4" Silk-suspended Aluminum Dome ferrofluid-cooled tweeters with neodymium magnets
• Mineral-Filled Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 93 dB

Infinity Kappa 603CF (INFSPKKA603CFAM)

660W Peak (220W RMS) 6.5" Kappa Series 2 Way 3-ohm Component Speaker System

Kappa 603CF big
Go to item page Right Arrow Icon of Right Arrow

660W Peak (220W RMS) 6.5" Kappa Series 2 Way 3-ohm Component Speaker System

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Silk Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

FREE Baffles, Damping, and More at Checkout! Shop deal
shipping truck icon Free shipping in USA. Provide zip for delivery date.
VIP Star Icon

VIP Product Get $40.00 in rewards to spend later

install icon

Up to $128 savings on install accessories you need

found car based on your search
Fits the following location in your 1991 Trans Am
5
Was $449.95 Details
$399.95 /set

In stock

• 330 watts Peak Each, 110 watts RMS Each
• 3/4" Silk Edge Driven Dome Tweeters
• Glass Fiber cone material
• Impedance: 3 ohm
• Sensitivity: 93 dB

Metra 82-6901

5.25” or 6.5” Speaker Mounting Adapters for select 1955-2025 vehicles from Chevrolet, Ford, Dodge

82-6901 big
Go to item page Right Arrow Icon of Right Arrow

5.25” or 6.5” Speaker Mounting Adapters for select 1955-2025 vehicles from Chevrolet, Ford, Dodge

• 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

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search
This speaker adapter fits your 1991 Trans Am
  • Rear Seat Side Panel 6" x 9" Full-Range
37
Was $22.99 Details
$19.99

In stock

• 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

Items per page: 20 40 60

    Clear all
    why-shoping-with-sonic

    We love people and we're ready to help you! See what separates us from our competition.

    Take advantage of our VIP rewards like 10% back on your purchases, free 2-day shipping, extended warranties, and free returns! Gain access to all of these rewards without any membership fees.
    Get great discounted (and possibly FREE) installation accessories with most car stereo purchases. This includes dash kits, wiring harnesses and antenna adapters that you will need to properly install your new car stereo.
    We are an Authorized Dealer for all the brands we sell, including the most premium brands in car and marine audio such as Hertz, JL Audio, NVX, Rockford Fosgate, Kicker, Alpine, Kenwood and many more.
    Shop Deals and get up to 30% off premium brands! Shop Now! We are always looking out for the best products and deals to offer our customers. Don’t pay too much by shopping elsewhere!
    We have information on brands, gear, and more for you to explore! Check out our YouTube Channel for helpful how-to videos, product reviews, and Q&As. For a more detailed look, also visit our Learning Center!
    Our trained experts are here to assist you! They are just a phone call or click away to help you get the right gear for you and your vehicle!
    Why Shop With Us?
    FAQ for your 1991 Trans Am

    Q: Can I upgrade the factory stereo system in my 1991 Pontiac Trans Am?

    A: Yes you can improve your sound in your Trans Am by upgrading your speakers and/or adding an amplifier. You may also be able to update the stereo and main display in your 1991 Trans Am if there is a dash kit and harness solution available.

    Save up to 10 different vehicles in your garage

    1991 Pontiac Trans Am

    Add vehicle Clear all vehicles
    Where to find vehicle info
    Are you sure you want to clear your garage?
    This action cannot be undone. Confirm
    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue
    Loading...
    Identify your vehicle and submodel details
    • Owner’s manual
    • Vehicle’s insurance card
    • Vehicle registration
    • Vehicle produced after 2005: Inside driver’s side door
    • Vehicle produced before 2005: Rear passenger doorjamb, glove box, center console, or engine compartment
    Car Info Side Door Icon
    Vehicle Registration Icon
    Vehicle Insurance Icon