The only real option for easy audio in is OEM LR. All adapters that work with BMW stuff will not work on the touch-screen system: they are only for the 02-04 pre-touch systems - which are BMW systems except for the foundry finish on the faceplate of the head unit. The android head unit is actually for the BMW models as well: the faceplate is curved and black to fit an older X5.

An FM modulator like the one Stan posted is ok - although I would just go for one that plugged into my phone's headphone jack and find a nice phone mount so I could use that as an interface. IMO FM modulators are not that wonderful in any way shape or form: you loose quite a bit of the frequency range when everything is working optimally, and when its not you have to change frequencies, have constant static, etc. Might be OK as a stop-gap around town where the frequencies remain the same, but can be a real source of frustration on long trips. I've had both €30+ brand name modulators and <€5 eBay.hk modulators - the cheap ones actually worked better than the expensive ones (and charged my iPhone too!).

If you really want MP3 music in a touch-RR, I would seriously consider the unit that axle has linked. Your driving a GBP50,000+ car, screw the GBP300.  
RRC 2Dr, RRC 4Dr,
P38, and 2 L322s
(wife thinks I'm nuts - prob right, too)

That unit replaces the CD changer in the car, and becomes a CD emulator. It is expensive for what it does, I'm not too sure as to the set up on the later touch screen systems, but I believe that they are digital and are linked by a single coax to the main system. There are a lot of cheaper units out there, some require the addition of a digital to analogue converter, but these are inexpensive.
The Grom units I highlighted are not the cheapest by a long shot, but an Ipod interface and a DSP converter would run you about £125, FYI the DSP converter is the digital to analogue converter needed if your CD changer has a coax lead as well as wires.
The most important thing that needs to be know is what connection you have on the CD. If you have a 3 pin and a 6 pin lead then your laughing, standard BMW 'Trunk' kits will fit, all be it in the glovebox? Don't get caught out like I did, BMW Trunk kits refer to the physical site of the CD changer, which in a FF is the glovebox, so std. connection leads are all thats required for Ipods and the like.
If you have the missfortune to have a 10 pin lead then the trunk kit will fit but you'll have to do some simple re-wiring
If you've got the 3 pin lead and a coax, a trunk kit will work with the addition of the DSP converter, a little bit more dosh but it should all still be plug and play

The cheapest interfaces that I have come across to date are the Connects 2, but I'm not sure if they will handle a digital input, cos I aint got one so I don't care

Grom have an extensive range of interfaces that go from a simple 3.5mm jack connection to Bluetooth and Android, with a USB option on some. I fitted Bluetooth and dedicated Ipod to my FF for £130 and a bit of wiring, if I'd gone done the factory route I'd have been looking at £500+. Which cost aside was not an option as I don't have the telephone wiring in my car, the Grom BT3 sorted it all out for pennies!  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

I'm getting a lot of confusion here. The original request was for a touch screen interface which would provide USB. From your post, miggit, it appears that you are referring to what you did with a non-touch screen which is a different beast from the touch screen version.

I have looked at the Grom website but don't really get any further forward.

SteveMFr, I spoke to the car audio people in Axle's link and they said it wouldn't work for the MY2005 FFRR which seems to run counter to some of the posts on here. John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

Weegie, bud, try this

http://carputer-shop.co.uk/bmw-mini-rover-...n-kit.html
BMWT option, but remember that you don't need any long adaptor leads for Ipod etc
And I suspect that you will need this as well

http://carputer-shop.co.uk/products/grom-a...n-kit.html

That is IF you have the coax cable coming out of the CD changer Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

Thanks. Will look at that.  John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

Hi bud, just found this picture on the intaweb, shows a coax type cd that requires the use of a DSP converter!



Hope this un-muddies the water for you  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

 John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

Hi Miggit,
Please trust me: the 2002-05 L322 Infotainment systems are not compatible with the later touch systems. The earlier systems are i-Bus based. All the units that interface with this system, from Grom, to Dension, to Intravee, to... are made to communicate on this system. The touch screen systems are MOST bus based and components are not interchangeable with the earlier systems - neither are the aftermarket interfaces.
Yes the LR ACM or the other unit linked above is expensive, but it is due to the cost of development for a relatively small market (LR&Jag touch-screen only) whereas all the i-Bus competitors have BMW, Mini, and older LR models to sell to (the OEM LR ACM is manufactured by Dension and looks very similar to other Dension units, but will not work on any other vehicle nor will their other stuff work on touch RRs). Plus, there is info avail openly on the net on the i-Bus (there even used to be a hack-the-i-bus yahoo group) whereas the touch screen systems have proprietary JLR sw - which, to my knowledge, no one has hacked (except possibly a few diagnostic equipment manufacturers... ).

Regards,
Steve 
RRC 2Dr, RRC 4Dr,
P38, and 2 L322s
(wife thinks I'm nuts - prob right, too)

The Bounders, as if they hadn't made it hard enough with 10 pin plugs. I suppose that the change in Bus technology was around the time that Ford took over, has anyone tried a ford interface?
Anyway Weegie has a 2004 touch screen so I'm assuming that it's a BMW one with BMW Ibus talk? So all should be OK, the only questions to be answered is does it have Logic7 or normal DSP. Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

Logic 7 and MOST system. I have tried to ascertain exactly whose system is fitted and it's beginning to look as if it isn't BMW.

The BMW engine and transmission were still being fitted but it appears that everything else is not BMW.  John
2008 Stornoway Grey 3.6 Tdv8 Vogue
2005 TD6 Java Black Vogue - Written off!!
GAP iiD BT
2003 Discovery TD5 Auto, Nanocom Evolution - gone to a new home!
MasseyFerguson 152 - No electronics!! - Sold

http://en.m.wikipedia.org/wiki/MOST_Bus

For info There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2010 LR D4 Commercial 2.7 TDV6

Weegie, buddy, has your system been upgraded?

And can someone tell me if the most system runs on a coax cable or does it run on fiber optic, there has got to be a way to tell. help! Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

Weegie, mate, I hate to admit defeat, but I'm if I can find a way, except L/R or ripping the system out and fitting after market, like the Android head units. From what I have been able to see, quickly glancing around, it would appear that SteveMFr, has done this.
I will say on a site, might have been connects2, I did see a fiber optic interface for the Mini, whether that will work I do not know.
I'd have a chat with SteveMFr, I'm lost! Analogue simples, early Bmw head ache, late................... Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

miggit wrote:

Weegie, buddy, has your system been upgraded?

And can someone tell me if the most system runs on a coax cable or does it run on fiber optic, there has got to be a way to tell. help!

miggit wrote:

Weegie has a 2004 touch screen so I'm assuming that it's a BMW one with BMW Ibus talk?

No such thing in a RR. Either non-touch BMW (i-Bus) based or touch MOST based. 2002-04 is i-Bus, 2005-12 MOST. There is actually quite a bit of info on these systems floating around - Colin (the owner of BlackBox Solutions) explains quite a bit in a thread he started to highlight retrofitting a MOST system into an early 2002-04 L322. Search for the "Ultimate Infotainment Upgrade" thread if interested.

Despite the fact that aftermarket head units are getting better, I still much prefer the OEM components augmented with aftermarket - or some sort of CarPC. All integrated to look and function as OEM. I would not install a curved-face X5 unit and lose the integration with the rest of the vehicle systems. But that is just my opinion.

You can do all sorts of things based on OEM components. Look through here at some of the threads started by Joe90, Daveo, or MattStevenson. Yes it is somewhat more expensive, but, christ, you are driving a GBP70000 vehicle. Why would you want to compromise that experience with cheap electronics? 
RRC 2Dr, RRC 4Dr,
P38, and 2 L322s
(wife thinks I'm nuts - prob right, too)