Garage
Shop
Account Icon
Account
Box Icon
Track
order
Telephone Icon
Call
Help Icon
Help
Door with Arrow Icon
Sign In
  1. Home
  2. Specials & Promotions
  3. Refurbished & Used

Refurbished & Used for your 2003 QX4 close

Filters

Your Vehicle

close
Checkmark Icon
2003 QX4
Product results for your vehicle – confirm details to verify fitment.
Update vehicle | Remove vehicle | Vehicle store

Shop the Category

filter-icon Filters & Sort

Belva BBMS8W (Open Box, Great)

500W Peak (250W RMS) 8" 2-Way Coaxial Marine Speakers for Boats/ATV/UTV/SxS/Powersport (White)

BBMS8W big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Belva BBMS8W (Open Box, Great)

500W Peak (250W RMS) 8" 2-Way Coaxial Marine Speakers for Boats/ATV/UTV/SxS/Powersport (White)

• 250 watts Peak Each, 125 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

• 250 watts Peak Each, 125 watts RMS Each
• 1" PEI (Polyetherimide) Balanced Dome Tweeters
• Polypropylene cone material
• Impedance: 4 ohm
• Sensitivity: 90 dB

Belva BT8RGB (Like New (Open Box))

600W Peak (300W RMS) 8" Marine Tower Speakers with Multi-Color LED Lighting and Remote (Black)

BT8RGB big DISCONTINUED
Go to item page Right Arrow Icon of Right Arrow

Belva BT8RGB (Like New (Open Box))

600W Peak (300W RMS) 8" Marine Tower Speakers with Multi-Color LED Lighting and Remote (Black)

• Peak Power: 300 watts Each
• RMS Power 150 watts Each
• 1" Titanium Balanced Dome Tweeters
• Polypropylene Cone
• Impedance: 4 ohm
• Sensitivity: 91 dB

Universal Icon Universal – fits most vehicles.

Shop similar products or Update vehicle

• Peak Power: 300 watts Each
• RMS Power 150 watts Each
• 1" Titanium Balanced Dome Tweeters
• Polypropylene Cone
• Impedance: 4 ohm
• Sensitivity: 91 dB

NVX - Worth the Envy - Direct to Consumer Car Audio
Prev 2 3 4 5 6

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?
    Save up to 10 different vehicles in your garage
    Vehicle
    Store     Delete

    2003 Infiniti QX4

    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

    Cancel

    This category was not designed for products.
    If you continue, you will be redirected to a category customized for your vehicle. Continue

    Cancel

    Shop your 2003 QX4
    Why Use a Vehicle Fit Guide?
    Change vehicle | Shop without vehicle
    Whoa! Slow down. Add your details below!
    additional information required
    Add vehicle details to confirm fitment
    Ignore fitment details
    Find stereos and more that work -- fast.

    Additional information:

    Remove

    Can't find your vehicle? Click here and we'll help.

    Where to find vehicle info

    Go to Fitment

    Didn't find your car?

    Submit your details and we'll help!
    Please enter the letters as they are shown in the image above. Letters are not case-sensitive.
    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
    Back

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

    • You see only parts engineered for your exact vehicle
    • You avoid incompatible radios, speakers, or wiring
    • Installation is smoother, faster, and frustration-free
    • You get the correct accessories the first time

    Whether you're replacing a factory stereo or upgrading your entire audio system, the Fit Finder eliminates uncertainty.

    Back
    Track your order
    Call our experts
    Support Center
    Return & Exchanges
    Follow on Instagram Instagram logo
    Subscribe on YouTube YouTube logo