Technical Rear speakers posible?

[HrMejlvang]

Hi everyone!

I've got a 2015 Fiat Ducato 2.3 mjt 150 as a handicap van for my two boys. They love to hear music loud, so I need to install som rear speakers before my eardrums explodes :slayer:

I've found out were the wirering are down the side of the passenger seat. But the Fiat 250 VP2 NAV doesn't send any signal out off the rear outputs.

Is it the software that needs to unlock or is it just imposible?

Please help a handi-dad :bang:

 

[DucatoGuy]

Hi
I have knowledge of auto electricity, I can try to help but I need to know some things.
How do you know that the Fiat 250 VP2 NAV does not send signal to the rear speakers?
Have you put the speakers in their place?

 

[FreeSpirit]

Hi Try here for more info -
https://www.fiatforum.com/ducato/448361-ducato-x250-rear-speaker-wiring.html
& also the downloads section for Ducato for the X290 version -
https://www.fiatforum.com/downloads.php?do=download&downloadid=550
But if its a normal commercial van it might not have the complete outfitters junction box at the B pillar.
Cheers

 

[RS3100]

The configuration for enabling rear speakers on the VP2 radio is done through the body computer. The only non-Fiat software I have found that can do it is AlfaOBD. You have to change the BCM setting from 4 to 6 speaker audio and then do a proxi alignment. (6 speaker because you have 2 door, 2 front tweeters and 2 rear). If successful the balance control on the radio will change to balance and fade.

I had the opposite problem in that my radio was configured at the factory for rear speakers but none were fitted. I had permanent fault codes for speaker errors and proxi alignment would always fail on the radio node as a result. With AlfaOBD I was able to program them out.

I did find instructions on a US forum for programming the speaker config through the radio engineering menu, but although it was for a VP2 radio on the Ram Promaster, the menu bore no relation to mine, and as it is all in hexadecimal not readable English and making a wrong setting can apparently brick the radio, I didn't play about with it!

 

[Jev88]

Add a small.subwoofer like £99 from Alpine and it will dramatically fill in the sound for you.

 

[HrMejlvang]

I am starting the process to install rear speakers so I've "metered" the RL RR outputs from the radio and tried connect a speaker unit. But no signal.

When I go in to the settings-> balance i doesn't show any rear speaker options.

I know that it's a VP2 Nav from the sticker on the side of the radio

 

[HrMejlvang]

I've found the junction box and it's perfectly set up for rear speaker

 

[HrMejlvang]

Will an Autel MaxiDiag MD808 Pro do the trick or do I need another type of equipment?

 

[RS3100]

Will an Autel MaxiDiag MD808 Pro do the trick or do I need another type of equipment?

No, the only software I'm aware of except for Fiat's own diagnostic equipment is AlfaOBD.

 

[HrMejlvang]

No, the only software I'm aware of except for Fiat's own diagnostic equipment is AlfaOBD.

Ahh... but what do I use in connecting my pc to the car? (i'm a newbee on this field)

 

[Eklipze3k]

MultiECUScan is what you want - https://www.gendan.co.uk/mes_chooser.php

As far as adding rear speakers goes, either run them in parallel to the front speakers or add a 4 channel amplifier (to run all 4 corners, to keep the volume balanced) or a 2 channel amp (if you're not bothered about the rear speakers being significantly louder than the fronts!).

 

[RS3100]

MultiECUScan is what you want - https://www.gendan.co.uk/mes_chooser.php

Sorry, but no. MultiECUScan cannot configure the audio options for the VP2 radio. I use MES but it has very limited functionality for that radio node.

 

[Eklipze3k]

Sorry, but no. MultiECUScan cannot configure the audio options for the VP2 radio. I use MES but it has very limited functionality for that radio node.

Apologies, I didn't realise it couldn't do that

 

[RS3100]

Ahh... but what do I use in connecting my pc to the car? (i'm a newbee on this field)

If you go to the AlfaOBD website and download the help file/manual it explains exactly what you need and how to use it. I'm not sure about the Windows PC version, as I use the Android app which has exactly the same functionality. For that, you will need a good quality Bluetooth OBD dongle (not a cheap Chinese clone as it will not work reliably) and a yellow OBD adapter cable intended for MultiEcuScan. The manual recommends dongles that are known to work and suggests suppliers OBDlink LX or MX and OBDkey are two recommended types. You can buy the yellow adapter cable from Gendan as mentioned in Eklipze3k's post above