See all parts that fit your 1999 Frontier
540W RMS QRS Series 2 ohm Stable 4-Channel Class-GH Amplifier
Product highlights
• 90 Watts RMS x 4 @ 4 ohm
• 135 Watts RMS x 4 @ 2 ohm
• 270 Watts RMS x 2 @ 4 ohm, Bridged
• High and Low Pass Filters
• 0-15dB Bass Bosst
• Aluminum Heatsink
• Dimensions: 14.29" W x 7.56" L x 2.32" H
6.5" or 6.75" Speaker Mounting Adapters for select 1995-2019 vehicles from Nissan, Infiniti, Suzuki
$11.99
List price $34.00
Install New Speakers in select 1990-2024 vehicles from Nissan, Infiniti, Mercury
$7.99
List price $14.99
Install a new Double-DIN car stereo in select 1993-2012 vehicles from Nissan, Mercury, Infiniti
$21.99
List price $24.99
Install a new Single-DIN car stereo in select 1993-2004 vehicles from Nissan, Mercury, Infiniti
$16.99
List price $31.99
900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers
$111.96
List price $159.99
Single DIN CD Receiver with Bluetooth and Built-in Alexa (Sirius XM Ready)
$199.00
List price $240.00
600W Peak (60W RMS) 6.5" Sport Series 2 Way Coaxial 4-ohm Car Speakers
$49.00
List price $80.00
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Apple CarPlay, Android Auto, and SiriusXM Ready
$339.99
List price $420.00
600W Peak (200W RMS) 6.5” CS Series 2 Way Coaxial 4-ohm Speakers
$79.96
List price $119.99
900W Peak (300W RMS) 6x9” CS Series 3 Way Coaxial 4-ohm Speakers with Integrated Midrange Speakers
$111.96
List price $159.99
360W Peak (120W RMS) 6.5" Club Series 2-way Coaxial 3-ohm Speakers
$99.95
List price $139.95
600W Peak (200W RMS) 6.5" DB+ Series 2 Way Coaxial 4-ohm Car, Marine and Powersports Speakers
$109.00
List price $119.99
480W Peak (120W RMS) 6.5” DS Series 2-way 4-ohm Coaxial Car Speakers (DSC6504)
$84.99
List price $94.99
6.8" Double DIN Touchscreen Digital Multimedia Receiver with Bluetooth, Wireless Apple CarPlay and Android Auto, and Built-in Alexa (Sirius XM Ready)
$469.99
List price $620.00
280W Peak (90W RMS) 6x9” SXE Series 2-way 4-ohm Coaxial Speakers
$56.99
List price $71.99
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Manufacturer:
Model Number:
QRS 4.90GH
Weight:
10.00lbs
Internal SKU:
qrs490gh
Internal Product ID:
149929
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Modern vehicles often require specific brackets, wiring harnesses, and mounting solutions. A fit guide ensures:
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