I know this video is old now but I suspect people will still stumble across it so first of all thank you for this information was super handy, however like one of the other commenters my amp didn't like the voltage modulation from the rear lights, if your reading this and having the same problem, fuse slot 25 in the rear fuse box is only active when key is in position 2 and running, perfect for remote if your amp doesn't like the pwm from the rear lights

Thanks for the feedback... helping people with the story is exactly posted it.. so really pleased to be of help

Thanks for this video! This really helped my install and worked perfect for me!

I've already seen this video being linked on Volvo forums! One difference I had to make was to add a 4.7uF capacitor between the grey lighting cluster wire and ground to smooth out the PWM regulating the voltage to the lighting cluster. On one amp it worked fine, on another it required the capacitor for the amp to stay on once the alternator started charging the battery. Volvo uses PWM to maintain a constant 12.xx V to the lightbulbs to extend their life. Using an oscilloscope confirmed that the PWM was the culprit.

@idiocratease

5 жыл бұрын

Thanks. That’s a really useful addition which did not affect my case with the focus amp, but seem like in your case was an issue... i confess, if I had run into trouble like this, I would have been a bit slumped...

Thank you very much... ✔

Thanks alot

I wish the Dealership Techs on youyr level of experiance

Brilliant job.

@idiocratease

3 жыл бұрын

Thank you… I have just done a major larger install on my Audi Q3 now… 10 videos in all…

Nice job :)

@idiocratease

5 жыл бұрын

Cheers mate !

Hi, I have the next gen 2016 XC90 and wondered what the options are to retrofit an Volvo Sub in the rear storage area of the car (where the factory fitted unit is installed) are the original wiring looms there and when installing it can you update the software on the centre drivers screen to show the sub on the tone settings? Cheers

Hi mate, so, is there any notable difference in the sound? Does it worth the trouble?

Hello! What's the impedance of the original subwoofer speaker?

I think it should be possible to use subwoofer internal amplifier, you just need to overpass the optical input by checking what (possibly tda) chip is used and soldering separate input cable.

@idiocratease

4 жыл бұрын

I am not at all sure this is right. You need the software in the head unit to have a sub option, digital crossover etc.. if this was the case, I think the sub would have probably worked. I think without this, messing around with the sub amp chips is a lost cause..

@cleaneraz09

4 жыл бұрын

idiocratease ah yes, you are right. I was talking more about only the posibility to use the same amplifier, but yes, input and all peripherials would still be necessary. I have a powerful subwoofer in my xc90, however since it takes quarter of my trunk I think it’s time to change it into the original one. I have my inputs taken with high/low converter, also I have taken it directly from the original amp which has TB2912HQ chip so it was not that hard to solder few cables to take an analog signal. Works ok but it was better with the high/low converter because i can easily control the gain level (my amp has no remote gain control). My question: was it hard to place a subwoofer into its original location? Any challenges? I have now a 400w rms sub with ported 100l box for 33hz, but how does a original sub perform? Thanks for quick response:)

@idiocratease

4 жыл бұрын

@@cleaneraz09 it was very easy to locate in original position. You need to take the rear headliner down and pop off the side panels. I was pretty easy

Hello and thank you for the great explanation.. but I have a question. I own a volvo xc90 r-design 2014 withe premium sound, but I would like to buy an original subwoofer and I do not know if my car supports its installation or not, knowing that there is something under the seat next to the driver, I do not know what it is

@idiocratease

Жыл бұрын

I don’t know. My guess, like I found with my car, is that you cannot re-code a subwoofer into the system (even when linked properly via the optical cables). So probably a solution like I have done is the best option. You could also just pull a speaker wire and splice it into a subwoofer with built in amplification and high level inputs. E.g. JBL BassPro SL2 Active Underseat Car

Hello can you tell me how you removed the panel in front of the fuse box and subwoofer please?

@idiocratease

4 жыл бұрын

As far as I recall, you need to take a couple of screws out of the plastic headliner (rear roof). Then the side panels pull away. They are on poppers

Hello great video,3:13 can you tell me me backround music,Thank you 😃

@idiocratease

5 жыл бұрын

I don’t know the exact track, but it’s Alex H ... and he is truly awesome.. you can listen to him here soundcloud.com/alexhumberstone

@meelisarukask361

5 жыл бұрын

Wow,thank you very much,Volvo xc 90 is my favorite car😄😄

@meelisarukask361

5 жыл бұрын

@@idiocratease Hello found the track.Alex H -Odyssey(Original Mix)

Why it's not possible to do a Factory Install of an XC90 Subwoofer on 2009? Even if you have factory harness from another car?

@idiocratease

4 жыл бұрын

I dont know the precise answer to this, but I guess because the software recognizes the hardware and knows this system is not configured with a sub. So like trying to install a 64bit program on a 32bit OS, does not compute. What is sure is that it is not possible irrespective of what you might read. I paid £50 at a volvo garage to try it.

@iacubus

4 жыл бұрын

@@idiocratease I know it's possible when you 1)install original sub 2)put an orignal harness with +12V and optical fiber 3)activate it on radio software through authorised service. It's definitely possible with XC90 till ~MY2007, where sub was just factory option. I'm trying to ascertain if the same is possible with XC90 2008-2013.

@idiocratease

4 жыл бұрын

@@iacubus ok. Yes I see what you mean. My XC90 has the premium sound system, and this does not have the sub. The previous system ( I believe) has has sub compatibility. So I think if you have this system it might work. However, my xc90 was 2010, 3.2L executive model, and as I said it came with the premium sound system. This does not take the software update...

@iacubus

4 жыл бұрын

@@idiocratease unfortunately I've got only High Performance

@serwatkiewicz

3 жыл бұрын

@@iacubus Hi. Have you any news about installing subwoofer in 2010-2014? I'm fighting with installation. MOST has been removed, in audio settings I can see subwoofer option, but when sub is connected radio turns off.

It's the two-coil speaker. Have you install it in the parallel or series circuit? There are four wires coming directly from the speaker, two red wires and two black ones.

@idiocratease

3 жыл бұрын

1.55 into the video it covers how the 2 coils was wired. Amp has 2 sets of terminals for wiring 2 separate speakers to, so I wired one coil to one, and the other to the other set of terminals. I am not sure if this is ultimately parallel, or dual mono... but that’s what it was...

What size is the factor sub?

@idiocratease

5 жыл бұрын

I don’t know.. check eBay search Volvo XC90 subwoofer and you will see lots of examples... maybe one or two might have the size. I do know they are dual coil.