I understand the amp uses an emulated on/off, but that's all I know at this point.......

Someone must have done it without having to bypass everything......

.....surely  2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

A bit more info during this older thread .....

http://www.fullfatrr.com/forum/topic4471.html 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

There is a blue wire from the head unit marked 'amp' which may be a trigger wire for powering on another amplifier stage.
Regarding the audio line strength, the output from the head will of course be speaker whereas originally the amp would be expecting a lower preamp strength signal I should think. Another fly in the ointment!

Well I've just read through the topic that you posted the link to mjdronsfield and it looks like I'm going to be removing the DSP and wiring directly to the speakers, which in many ways is a shame.
But if the DMP is looking for volume level signals via a bus system fom a now missing head unit I'm on a hiding to nowhere!
Thank you for all your input though guys.

Dave

Pete removed all his original kit and wired directly to speakers, but does not have a signal to all the speakers I believe.

All the pickups for the speakers are in the boot, so you ought to be able to connect it to drive them all ?

And to the volume issue, how does the new unit work ? I understand it uses the steering wheel buttons, so there must be an ibus feed somewhere that your new unit uses ? That is all the DSP needs.

Is the new system plug and play only for systems without dsp then ? 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Connecting up to all of the speakers without the amp would be easy, yes. And the best solution. One channel per door, not using the speaker in the dash top centre, and driving the sub woofer with the head unit's dedicated feed would I think provide much the same sound as original.
But there is the thorny problem of impedience mismatch.
I'm not sure what the speakers' combined impedience is but I should think that it's way over the units' rating. I believe a bit of mismatch is acceptable, but not a mammoth amount.
I don't know what the impediences of the various speakers are, and frankly I don't understand enough about it to work out a way around it.
For example, I think the output from the head unit is 8 ohms, but is that per channel, or combined?
Dave

Being a bit of a hi-fi 'ist and having a tri-active LINN setup in the house, I like things to sound right. I have the BM54 stage 2 amp upgrade and bmw bluetooth etc I find the system now does exactly what I want, so never really looked much at these head unit replacements. That said, I see why people do it and it's more modern with extra functionality, so I get it.

If it were me, I'd connect up to all the speakers in the boot area and see how you go. Low volumes to see of course.

There was a thread here recently about speaker impedance.

FYI, the centre dash speaker is not driven from a bespoke channel, it's run from the mid range front door speakers, negative from one and the positive from the other. If you take the front door card off you can see where it feeds from on the back of the speakers.

If that ends up being a no go, I'd be taking the pre amp out from the new head unit and fitting a big power amp in the boot to drive the speakers at a decent level, with more channels.

It's not going to sound right with the bass, mid or treble removed, not to me anyway.

There must be a way...... Won't be beaten

Mark 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

If it's any use.....

Click image to enlarge

Click image to enlarge

Sorry, been out all day playing...

All the speakers I tested were 8ohm the unit runs four channels at 4ohm so will take two speakers fine and as Mark says the front is split between two so would work fine....

My mate who is a musician and has an ear for these things says it's a great sound with good separation (whatever that means) and recons there is enough base coming through anyway... it does sound good to me as well but I don't have HD hearing!!!

I'd fire off an email to Erisin as it should be plug and play, they take a few days to answer tech questions as they send the requests to their tech department and they are a bit slow, but they have always been more than helpful.... Pete
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Parchment over Navy Interior. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand, Jet Interior. Sold
2002 L322 Vogue 4.4 V8 Epson Green, Ivory over Aspen Interior (Fatty Offroader) Sold
-Click for Project Fatty off roader-

Hi folks
Just got my 9753gbp with dtv box and 5 metre extension ,had a quick dry run yesterday on my 04 vogue and unit works fine,dtv works fine however no noise !...definitely not plug n play...so plan B is to get a parrot adaptor,wire the existing head unit in parallel and stuff it where the cd changer presently lives and go from there...really don't fancy all that chopping into wiring looms....its just coloured spaghetti to me !!

Really impressed with the unit,fast boot,sat nav surprisingly rapid and the unit is far far more intuitive than the existing system (helps that I have an android phone so its almost second nature) service from erisin was excellent although the same cant be said for royal mail who managed to 'lose' the package for 2 weeks

Just need to work on a solution to use the 2 existing aerials from the now redundant analog tuner

Fooling the existing system should work in theory if you use connectors / phone adapter kits that use the correct plug pickups on the BM54.

You would not need a phone loom if you were happy to join into that coloured spaghetti though.....

My only concern would be that from memory, when the phone is used, it's only a single channel, so you'd have mono sound not left and right. I mean it comes out of both sides, but the sound is identical, if you see what I mean. Will check.....

There is a member on here who does BM54 amp upgrades and repairs, a chap called Baris. I know he can add aux in etc to the amp to allow extra auxiliary devices. They can be a various plugs, I have a 3.5mm jack plug for an MP3 player or such like, or you could have the red and white phono plugs, so you could be able to use the pre amp out from the new android head unit and connect it into the existing sound system. You'd just need to select AUX on the old head unit which you'd have in the glovebox and away you'd go......

Worth a bit of investigation.

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

Wandering aimlessly online I came across this..http://www.gromaudio.com/docs/bmw_dsp_kit_manual.pdf

Would the emulated on/off switching of dsp be covered by this or something like it ?

That looks like it just enables a different source to be connected where the cd changer was, but the emulated on off IBus signal would still be sent from the head unit in the dash when you press the on off knob, so I don't think it would help.

The more I think about it, I'd be looking at getting the aux in mod to the BM54 done to just add your new android head unit as another device, or I'd use the feed from the TV module, that you won't use, and feed the audio in that route rather than the phone, as it has stereo feeds to the amp. Select Television in the glovebox, hey presto.

The TV module would need to be left in and connected, so it can identify itself on the bus and be highlighted for selection on the screen, but the audio wires would be replaced by yours. 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

And whilst I don't want to muddy the waters, don't forget that the HK system fitted is an active system, in that the speakers do not have crossovers built into them, it's done in the DSP, so if you wire directly to the speakers from your new head unit, you will be feeding a full range signal to all the speakers, which were designed to only operate within a set frequency range. The high range tweeter tends not to like being fed bass frequencies.

Depending on how much of an anorak you may be, will dictate whether this bothers you.....

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

These are the people that I have used to add my aux in to the BM54 amp ;

http://www.carphonics.co.uk/landrover.htm

May be worth calling them tomorrow or emailing as they could be the easiest route, and may be able to suggest a better way of fooling the system, as they do all sorts of mods..... The Stage 2 amp upgrade is very good and well worth it if you are into your music. Can be done at the same time.

I'm only in Chesterfield, so if you want to have a run up the A38 and have a listen.....

 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport