[323tom]

Hey guys, fairly new to the E90 body line I just picked up a 2007 328xi... have owned my E46 for 7 years now with a pretty serious system. I am looking to upgrade the stock amp/speakers that come with the Logic 7 package, I also want to hook up a extra JL W7 10" woofer powered by a JL 1000/1 amp that I have laying around. I am also installing a Pioneer AVIC-X950BH double DIN that I just picked up with the Metra bezel/heated seat button relocation kit and have everything else to install the double DIN, I am having this all professionally installed but any suggestions/tips you guys have will help (I have spoke to another forum member thats local to me and has his double din/sub install by the same place I am going but he had a few issues that they have now taken care of)

Are the stock chimes powered by the stock head unit with the logic 7 system?
Does JL make replacement speakers for our cars?
What amp do you guys recommend? I was looking at the JL 600/6 or JL 800/8
What speakers do you guys recommend?

Any other suggestions are greatly appreciated!

Thanks, Tom.

[ctuna]

http://www.e90post.com/forums/showthread.php?t=641323
BMW stereo types
http://www.e90post.com/forums/showthread.php?t=352586
http://www.e90post.com/forums/attach...2&d=1266451970
http://www.e90post.com/forums/attach...2&d=1260829447
http://www.e90post.com/forums/showthread.php?t=343673
http://www.e90post.com/forums/showthread.php?t=138949
http://www.e90post.com/forums/attach...1&d=1209780605
http://www.e90post.com/forums/showthread.php?t=641323
http://bmwcoders.com/forum/3-er-8/bm...1-e92-e93-291/
http://www.e90post.com/forums/attach...1&d=1209780865
http://www.bawarec.ru/manuals/3er/e9...3er-e90-12.pdf
http://www.musicarnw.com/page-2/
http://www.e90post.com/forums/attach...4&d=1278871872

Most Jl speakers won't fit there amps are a standard
choice here though. There is a a list of speakers that do fit
in the first thread .
A Technic Harness is a must unless you get a MusicarNW Kit
as it comes with the kit or the necessary harness does.
Morels and Jehnerts are the favored speakers for the most part.
I would be careful as most professional installers can't do a BMW very well.
You should be aware that changing the head unit comes with some
side effects.
1)BMW will not be able to update your software or do diag repairs
that require changes in software values without the original head
unit installed. For this reason some mount the old head unit in
the trunk.
2)Any options that work through the radio such as BMW SOS , PDC,
bluetooth will cease to work without the original head unit installed
and may throw error messages.
Read the following thread for parallel mounting.
http://www.e90post.com/forums/showth...hlight=dynavin
http://www.e90post.com/forums/showth...ight=head+unit
There is also something called a connects2 harness now which is basicly a Y that allows two head units to be hooked up . I don't
know what the problems are with that one if any .

[323tom]

Thanks for your reply, I will look into those speakers you suggested and I may have to give MusicarNW a call, I have read about the Technic harness but from my understanding I will not need this with a aftermarket amp/head unit? I have also read about the side affects of not having the stock head unit and having it mounted in the trunk could be a possibility, I don't have PDC and SOS that I know of at least haha, the installer I have chosen has already done 2 of these cars now and I have spoken with one of them (forum member) and it should not be a problem, Ill check the connect2 out as well

[ctuna]

You need some kind of harness
as there is only and optical connection between the existing BMW Head
Unit and Logic 7 amp.

These are some system examples

Best System examples
http://www.e90post.com/forums/showthread.php?t=445266
http://www.e90post.com/forums/showth...ight=processor
http://www.e90post.com/forums/showthread.php?t=727760
http://www.e90post.com/forums/showth...ighlight=level
http://www.e90post.com/forums/showthread.php?t=590420
http://www.e90post.com/forums/showthread.php?t=581379
http://www.e90post.com/forums/showthread.php?t=451941
http://www.e90post.com/forums/showthread.php?t=540954
http://www.e90post.com/forums/showthread.php?t=324214
http://www.e90post.com/forums/showthread.php?t=495855
http://www.e90post.com/forums/showth...hlight=technic
http://www.e90post.com/forums/showth...ghlight=Dotech
http://www.e90post.com/forums/showth...&highlight=BSW
http://www.diymobileaudio.com/forum/...morel-jbl.html
http://www.e90post.com/forums/showthread.php?t=494299
http://www.bimmerfest.com/forums/sho...d.php?t=550771
http://www.m3post.com/forums/showthread.php?t=540446
http://www.e90post.com/forums/showthread.php?t=532585
http://www.e90post.com/forums/showth...ht=amp+upgrade
http://www.bilstereoforum.se/showthread.php?t=2356
http://www.e90post.com/forums/showth...hlight=level+3
http://www.e90post.com/forums/showthread.php?t=833581
http://www.m3post.com/forums/showthread.php?t=443043
http://www.diymobileaudio.com/forum/...creations.html
speakers that fit.
http://www.e90post.com/forums/showthread.php?t=343673

http://www.e90post.com/forums/newrep...eply&p=6709917

The last two are from entry 5 in the audio table of contents sticky.
I would go an see if you can listen to your installers work.
Don't let them sell you something before you have researched it.

[Ali-E90]

Originally Posted by ctuna

You need some kind of harness
as there is only and optical connection between the existing BMW Head
Unit and Logic 7 amp.

If he's replacing the HU and amp, why would he still need a harness? The optical connection would be a non issue as his amps would be fed by RCA directly from his new HU.

Am I missing something?

If he does relocate HU to trunk, then I could possibly see the need for one, though even that might need clarification (and may be covered in one of the links you provided).

[djkevinnn]

Honestly, the stock Logic 7 speakers are pretty good. I replaced my Logic 7 amp with the JL Audio XD 600/6. Everything is much louder, much cleaner, and TBH I like the unprocessed no DSP better.

[bmw325i]

Originally Posted by Ali-323i

If he's replacing the HU and amp, why would he still need a harness? The optical connection would be a non issue as his amps would be fed by RCA directly from his new HU.

Am I missing something?

If he does relocate HU to trunk, then I could possibly see the need for one, though even that might need clarification (and may be covered in one of the links you provided).

You still need technics harness to get the sinal to the speakers. You have cut the connector off that plugs into the stock amp.

In the dash the connects2 harness is the best option. Tap into the can wires on the connects2 harness and extend them to the metra harness in the trunk for the stock headunit. Use the most cables from the stock amp and power and ground from techincs harness to relocate the headunit.

For chimes there are a couple of ways to do it.

1. Use the connects2 harness for pdc with a line output converter. You'll have to use the speaker level outputs from the new headunit into an active or passive line output converter. Your chimes would play on the existing speakers.

2. Use the connects2 harness for pdc with a seperate speaker in the dash for the chimes.

3. Recode the stock headunit to base and use the stock headunit for the chimes. You'll have add seperate speaker(s) for this.

[bmw325i]

Originally Posted by djkevinnn

Honestly, the stock Logic 7 speakers are pretty good. I replaced my Logic 7 amp with the JL Audio XD 600/6. Everything is much louder, much cleaner, and TBH I like the unprocessed no DSP better.

+1. I thought the logic 7 speakers sounded very good with just an xd600/6. Also there are plenty of good processors, but the MS8 isn't one of them.

[djkevinnn]

Originally Posted by bmw325i

+1. I thought the logic 7 speakers sounded very good with just an xd600/6. Also there are plenty of good processors, but the MS8 isn't one of them.

Haha, down the line looking for the Rockford Fosgate 3Sixty.3. I don't care for DSP, just a more versatile crossover. That way I can fine tune those under seats for solid mid bass and I'd like to add a JL 10w7 in the trunk

[ctuna]

You need a basic harness at least.
You need to route the pre amp out of the HU to the new amps
in the trunk as the OEM Head Unit amp has no wires for this.
If you use the existing speaker wiring you need to tap into
the amp connector in the trunk or cut or tap at the connector that
routes the wiring to the speakers. Rule number one in the audio
upgrade thread is don't cut off the connectors.
I believe Technic has a L7 harness for this.

[bmw325i]

Originally Posted by ctuna

You need a basic harness at least.
You need to route the pre amp out of the HU to the new amps
in the trunk as the OEM Head Unit amp has no wires for this.
If you use the existing speaker wiring you need to tap into
the amp connector in the trunk or cut or tap at the connector that
routes the wiring to the speakers. Rule number one in the audio
upgrade thread is don't cut off the connectors.
I believe Technic has a L7 harness for this.

+1. This can be easily done without cutting or tapping any stock wires.


If it wasn't clear, when I said to cut off the connector I meant from Technic's harness not the stock wiring.