How do I install an amplifier - 2003 Nissan Sentra GXE

If you can't find the audio amplifier under the seat as mentioned in the manual, there are a few other places you might want to check:

1. Trunk area: Some Lexus LX470 models have the audio amplifier located in the trunk area, often mounted on the side panels or near the rear speakers.
2. Behind the dashboard: In some vehicles, especially those with more complex audio systems, the amplifier may be located behind the dashboard or near the head unit. You may need to remove some panels to access it.
3. Under the center console: Occasionally, car manufacturers install amplifiers under the center console or beneath other interior panels. This location keeps the amplifier hidden and can save space in the trunk or under the seats.
4. Behind the glove compartment: Sometimes, especially in luxury vehicles like Lexus, the amplifier may be tucked away behind the glove compartment. Removing the glove compartment may give you access to the amplifier.

If you still can't locate the amplifier after checking these areas, you may need to consult with a professional car audio technician or refer to specific technical documentation for your vehicle model. They may have insights or access to resources that can help you pinpoint the exact location of the amplifier.

make sure the speaker is not damage first...I don't think you can add an adapter to the factory radio...try finding another used amp at the salvage yard or eBay

No! You will have to install all wiring!

a quick google search found this:
http://www.jaguarforums.com/forum/audio-visual-electronics-23/pinout-wring-diagramm-hk-power-amp-lna4170ab-90448/

Hi Bob, Joe got in first, because that would have been my advise exactly! Find the power feed to the amp and then do what Joe advised. (Of course the choice of where you fit the switch is yours, you don't have to have it by your seat but it makes sense if you're driving alone) Regards John

Hi.

If there is popping sound and the fuse blows when the radio is flickering, then it is usually a short in the stereo wiring. The short results in excessive power draw and blows the main fuse. The radio must be removed to check the wiring behind. In some less common case the radio itself may be shorted inside becuse a defective PSU. If you have installed an amplifier check also that the problem is not the amplifier ordinary power draw, in that case the problem is fixed installing a capacitor in the amplifier power wiring.

DIRECTWIRE™ WIRING INFORMATION - NISSAN / TITAN / 2004 / Audio


Radio 12v yellow + radio harness
Radio Ground (chassis)
Radio Ignition purple + radio harness
Radio Illumination red/blue + radio harness
Factory Amp Turn-on green/white + radio harness or amplifier
Notes: If equipped, the BOSE amplifier is to the right of the steering column, behind the BCM.
Power Antenna N/A
LF Speaker +/- blue/white - blue/red +,- radio harness or amplifier
Notes: If equipped, the BOSE amplifier is to the right of the steering column, behind the BCM.
RF Speaker +/- white/black - blue/black +,- radio harness or amplifier
LR Speaker +/- lt. blue - black/yellow +,- radio harness or amplifier
RR Speaker +/- orange/blue - red/blue +,- radio harness or amplifier
Interface Module: Category:
Immobilizer Bypass Required:
Yes Type:
Transponder
Part #: 556UW
Alternate Part1 #: 555U
Alternate Part2 #: DesignTech 20402
Alternate Part3 #: DesignTech 29402
Notes: Standard on the SE and LE models. Optional on the Crew Cab XE models.




This wiring information is being provided free of charge on an "as is" basis, without any representation or warranty. It is your responsibility to verify any circuit before interfacing with it using a digital multimeter.
Directed electronics, Inc. assumes no responsibility with regards to the accuracy or currency of this information. Proper installation in every case is and remains the responsibility of the installer. DEI assumes no liability or responsibility resulting from improper installation, even in reliance upon this information.

Hope helps (remember to rate this nswer)

not all have amps.

SECTION 415-01: Audio Unit 2001 Focus Workshop Manual
REMOVAL AND INSTALLATION Subwoofer Amplifier Removal

1. Remove the subwoofer speaker. For additional information, refer to Section 415-03 .

8 screws

1. Remove the grill.

1. Remove the subwoofer amplifier cover retaining screws.

1. Disconnect the subwoofer amplifier electrical connectors.

1. Remove the subwoofer amplifier retaining screws.
   • Remove subwoofer amplifier.