BMW e46 M3 iPod integration saga

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wheresmybacon

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Sep 10, 2004
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About mid-week last week I received the DICE Silverline DUO in the mail from a retailer my wife found online: http://www.sonicelectronix.com/item_...O-100-BMW.html

My car: 2003 BMW M3 with HK audio sans navigation

I've done at least a dozen car audio installs of all types over the last 20 years, doing everything from multi-thousand dollar full system builds to enclosures and false floors, head units, simple alternator noise elimination and everything in between. In short, I know what I'm doing.

On to the install. Very easy. There just aren't not a lot of ways to screw this up. Noobs can do this, no problem. The most difficult part was locating the 3 and 6 pin connectors. They were hidden so thoroughly behind the factory amp I thought I didn't have them. Once I found those, I carefully ran the cabling up to the front of the car and behind the glove box, paying close attention to keep it away from anything that may cause interference. The running of the cable was easy, but I won't lie: it took a while. Rushing here can lead to broken interior pieces or the mysterious buzzing/hissing/alternator whine if you just throw the cable any old place and hope for the best. I chose the slow and steady route.

Once everything was in place I fired up my system and the DICE unit instantly detected. Nice! And that's where the good ends, unfortunately.

Once audio started playing I was shocked at the difference between the sound level of my iPod and the sound level of the CD player and radio. It sounded like the gain was turned up all the way on the iPod or the DICE. And sure enough it was. On the DICE. I found the adjustment, pressing the 3 button on my head unit and slowy notching down the gain for the DICE with the left arrow button on the HU. Even at the absolute minimum, the distortion level and sound quality was HORRIBLE. It sounded like really, really awful FM radio reception played through an amp with the gain turned up all the way.

So I took my iPod off the adapter and checked the Firmware: 1.3, the version recommended by the DICE docs. Next I made sure I had no EQ or other settings enabled in my iPod. Hooked it back up, still trash. Garbage. I grabbed my wife's iPod and hooked it up. Horrible. More distortion. WTF is going on? I checked the forums and found a lot of talk about electronic interference and a varying buzzing that increased with the RPMs of the car, classic alternator whine or other electronic interference. But that's not what I had. Turning the car on made no difference whatsoever.

One support person kept suggesting people suffering from this problem should buy the unit that installs in the dash. I wasn't convinced.

Wanting to exhaust every conceivable solution, I upgraded the DICE firmware, which made no difference at all.

And finally, completely sure that my cable route was clean but determined to find out where this noise was coming from, I undid the cable route and chose one that would be certain to contain no interference from anything at all electronic. My driveway:

IMAG0070.jpg


Guess what? This didn't fix it either.

Between researching forums and methodically trying one alteration at a time, I spent the better part of my Memorial day weekend fiddling with this adapter. I ended up sending it back, and now I've got a replacement device en route.

As a sysadmin with thousands of dollars of spare parts and cannibalization candidate servers and workstations around me, it makes me appreciate what I've got in that regard. At work I can just throw a different processor or drive or motherboard in. At home, I have to trust that what the vendor sends me isn't DOA...
 
Sep 7, 2009
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The newer/feature rich dice unit (mediabridge) has far far less problems.


Still, the best way to do this is with that alpine k20a adapter for a "direct" input to the stereo from the ipod.


I wish they'd come out with a decent foolproof wireless solution... Maybe a 12v wireless device that has a lineout and support airplay or whatever that wireless audio solution is
 

wheresmybacon

Diamond Member
Sep 10, 2004
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I received the replacement unit yesterday and installed it. I queued up an identical album to what I had in the CD player and turned up the volume. I toggled between modes and listened carefully. Actually the carefully part wasn't necessary. It's painfully obvious which source was which. This unit was slightly less distorted than the previous one - perhaps by virtue of me not updating the firmware? - but it's still unacceptable. The sound quality is very, very poor.

I'm absolutely shocked that people are fine with paying $125 for these things. There shouldn't be any reason a device like this is substantially less clear than CD audio, and it definitely is. Again the problem is the gain. The default level is way, way too loud and the minimum setting isn't low enough to eliminate distortion and dead-air hiss.

If you can't tell the difference between cassette tape and a clean digital audio source and you have $125+ to waste, DICE would be a good fit for you. As it stands now I would not recommend this product to anyone.
 
Sep 7, 2009
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FYI these issues are extremely common with the dice units.


IMO if you're ok with a cable connection and being limited to BMW1-BMW6 playlists then go with the BMW cable


Problem with the intravee is that the alpine kc20 adapter is no longer made.


All that's really left is the mediabridge, which seems to work well but is overpriced - plus, I wouldn't give Dice my money.


Personally I ended up just burning mp3 cds... They're cheap and hassle-free.
 

wheresmybacon

Diamond Member
Sep 10, 2004
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Yeah, SpatiallyAware I'd read a lot of negative stuff about Dice, but as with many things in my life I had to experience the crap myself first hand before I believed it. And it certainly is crap.

At some point in the future I'd like to get the Dynavin unit, but that's too much money for me to spend right now.

I'm going to make an aux-in cable and see how that works: http://sftf.wordpress.com/2010/02/21/e46diyaux/. I'd also be fine with mp3 cd's for now, but I'm not sure if the 2003 HU supports em. I thought it was only 2004 and after. I'll try that when I get home tonight.
 

JulesMaximus

No Lifer
Jul 3, 2003
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I shit canned the worthless stock HU in my Maxima years ago and went with a nice Pioneer unit with the add on iPod interface. It allows me to scroll through the menus using the HU and it charges my iPod when it is hooked up. Even has built in bluetooth and sirius satellite radio.

Not sure about the BMW though, if it's like my wife's Lexus you're pretty much stuck with it.
 
Sep 7, 2009
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Yeah, SpatiallyAware I'd read a lot of negative stuff about Dice, but as with many things in my life I had to experience the crap myself first hand before I believed it. And it certainly is crap.

At some point in the future I'd like to get the Dynavin unit, but that's too much money for me to spend right now.

I'm going to make an aux-in cable and see how that works: http://sftf.wordpress.com/2010/02/21/e46diyaux/. I'd also be fine with mp3 cd's for now, but I'm not sure if the 2003 HU supports em. I thought it was only 2004 and after. I'll try that when I get home tonight.


You're right - mine's a 2008, so it has aux-in and plays mp3 cds

One issue with aux-in is that you lose your steering wheel controls. To me this is a dealbreaker, I love being about to go to next track etc from the steering wheel vs messing with a phone.


What about buying a newer BMW headunit?
 
Sep 7, 2009
12,960
3
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I shit canned the worthless stock HU in my Maxima years ago and went with a nice Pioneer unit with the add on iPod interface. It allows me to scroll through the menus using the HU and it charges my iPod when it is hooked up. Even has built in bluetooth and sirius satellite radio.

Not sure about the BMW though, if it's like my wife's Lexus you're pretty much stuck with it.


Every aftermarket bmw setup I've seen looks like crap.. Plus they have amps etc spread around so it's not a matter of just splicing in the new connector (most of the time)
 

wheresmybacon

Diamond Member
Sep 10, 2004
3,899
1
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You're right - mine's a 2008, so it has aux-in and plays mp3 cds

One issue with aux-in is that you lose your steering wheel controls. To me this is a dealbreaker, I love being about to go to next track etc from the steering wheel vs messing with a phone.


What about buying a newer BMW headunit?

Ideally I'd like to keep the steering wheel controls, but in the short term if I have to control the iPod myself, I'd be fine with that as long as it doesn't sound like garbage.

The Dynavin HU is the direction I want to go...it's just a matter of convincing my wife. :) Probably a month or two down the road. I like projects, so if I go that route I'll take pics and write something up.
 

DivideBYZero

Lifer
May 18, 2001
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Every aftermarket bmw setup I've seen looks like crap.. Plus they have amps etc spread around so it's not a matter of just splicing in the new connector (most of the time)
This.

Take a look at this. It's the 'Comms cabinet' in my E46:

m3mp3-prior.jpg


At the bottom you see one unit, but there are two more just like it behind it, one for Radio & TMC data (traffic data to Nav), one is the HK Amp, the one in front is the TV unit, then above the Navigation Computer, CD Changer and Telephony system.

Essentially the head unit does little, everything is carried over audio and network lines to the HU for display and interaction only.
 

wheresmybacon

Diamond Member
Sep 10, 2004
3,899
1
76
This.

Take a look at this. It's the 'Comms cabinet' in my E46:

m3mp3-prior.jpg


At the bottom you see one unit, but there are two more just like it behind it, one for Radio & TMC data (traffic data to Nav), one is the HK Amp, the one in front is the TV unit, then above the Navigation Computer, CD Changer and Telephony system.

Essentially the head unit does little, everything is carried over audio and network lines to the HU for display and interaction only.

:thumbsup:

What kind of head unit are you running?
 
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