David2512

Hi, I am going to be adding a powered subwoofer, would it be best to tap into the rear speakers or front speaker, I have the 8 speaker pioneer system without a subwoofer, also don you get bass roll off on the lexus wouldninneed a lc2i to avoid this.

Piotreknx2

Hello, raising this subject again although long time passed. Having NX200t US '16 version where originally Pio as HU and Pio AMP in the trunk in place (HU Pioneer 86140 78010).
To achieve local (PL language) version and EU radio Mhz range - switchinng to Fujitsu (86140 78220 with navi tapped on the bottom and AMP built-in). Could you please let me know on how to arrange the wires to hu directly to "remove/skip" original amp in trunk?
Fujitsu EU 8614078220. All US cubes after Pioneer 8614078010 fits, but no sound thus asking what wires change in the cubes
Belo

Wires and cubes (original US)

Wires and cubes (original US for HU Pio and AMP in the trunk)
Aiming to switch into HU Fujitsu with amp built-in.

mps2220

I listened to mine and thought the fronts doors had slightly lower range than than the rear doors, If I had a cheap RTA I could verify that with 100% certainty very quickly. Here is what my JL Fix 82 measured looking at the RED (Channel 1,2) ** The Orange line is the summed 1,3 / 2,4 channels

bensiow20

Hi all not sure if this thread still alive , i just got my 2015 Nx200T , went to purchase a aftermarket Android 10 screen , after installation at very high level able to hear hissing noise . Want to add amp and upgrade the speaker i was told by the installer the hissing noise for after market android is a norm and adding amp will amplify the hissing .

Anyone else had the same experience ?

ramses974

It is a big problem, it is very rare to get hissing noise in this kind of car, perhaps the Android screen is very very bad protected or made...Your installer is right, you will amplify the hissing noise... About your hissing noise , do you know the source ?? ( alternator ? or Can cable ?)
BOth can be very attenuated , as i told attenuated

PS :I do not recommend fitting Android in cars , because all products are not equal , when the software is right, they cannot do good in the sound etc and vice-versa... why not a good Chromecasting tool or Android car play additionnal feature...

Lexuswiz

iTrader: (1)

Yes, I have experienced this for years with no-name brand android aftermarket headunits. No way around it unless I dumped the unit for some brand name one.

I think you can add an amp, the hissing noise should only be amplifed with on higher volumes. You could possibly use a DSP before the amp and filter it out but that's over my head.

bensiow20

unfortunately this is the flaw from all aftermarket china android , its too late I had even try to get the top specs ones . Thanks for your response and suggestions.

bensiow20

@Lexuswiz its a risk to take on how much will amplify the hissing and engine revving sound , on the bright site playing around the the Android EQ make it sound better than the stock with the same source . My installer has build another NX with dsp and amp and the hissing sound horror . But i understand that its a different android as well.

mps2220

To my ears, the factory fronts have more bass than the rear doors, use that. Grab the signal in the Passenger side rear quarter panel. Lc2i or any amp that has high level inputs that controls bass roll-off would be ideal. There is enough room to mount the amp behind this panel assuming you pick a compact new style class D which will run cooler than the older type Class A or Class AB. For Power, pop through the fire wall on the passenger side, remove the glove box and you will see the grommet.

.

austinav

I solved this problem by turning off the android sound effect. And you plug a AUX cord to the AUX will solve the humming sound.

LophatRX

So, a couple quick questions. Has anyone actually taken the factory amp out and replaced it with an aftermarket amp? Does it have too many channels to actually do that? I have 2 separate amps for Mids and Tweets, and a separate amp for sub. I was thinking, if you could modify the factory connectors to allow it to connect to aftermarket amps and run your system that way. Or am I going down a really bad rabbi hole of trying to modify the factory system.

mps2220

Check Crutchfield for what integration products are available for your car.

https://www.crutchfield.com/car/outfitmycar/mycar.aspx

LophatRX

Yeah, they don’t list anything that’s helpful. But thanks.

mps2220

What year NX do you have?
Does yours have the Factory Nav?

LophatRX

2016 w/nav