Enhanced Premium Sound/Logic7 Plug 'n Play Trunk Subwoofer Harness

Originally Posted by jalia43

Hi. My 320 has the logic 7 system in it and I would like to install an amp and a couple of subs in the trunk. I've been browsing for days in different forums trying to find a good solution and your harness seem to be the best solution there is. Clean and doesn't tamper with or damage the original system.

So a few questions:

So can you make a harness for my 320? If so how much is it?

Logic7 OEM amp harness is available: http://www.bimmerfest.com/forums/sho...4&postcount=51

Do I need to reprogram the system after the harness has been installed?

No, this is a hardware solution.

And finally how do I order?

Ordering details only via PM...

Trying to sort out an upgrade path. I have a 2011 X5M with Enhanced Premium Sound (option 672). Preference would be to upgrade to front and rear Morel component sets, possible earthquake sws8 under seats, JL audio subs in cargo being driven by MS-8 through 8 channels of amplification from three aftermarket amps. I would also prefer to try to get low level RCA signal from head unit to feed MS-8 with thought being the less components in the signal path, the better. What are my harness options?

Hello guys.

Where can I get this technic LOC? Anyone has a link? I use a BMW Professional Stereo.

Btw, does technic have gain control?

Thank you in advance!

Originally Posted by gunman168

Hello guys.

Where can I get this technic LOC? Anyone has a link? I use a BMW Professional Stereo.

Btw, does technic have gain control?

Thank you in advance!

No shipping to Philippines, sorry.

Originally Posted by Stockton

Trying to sort out an upgrade path. I have a 2011 X5M with Enhanced Premium Sound (option 672). Preference would be to upgrade to front and rear Morel component sets, possible earthquake sws8 under seats, JL audio subs in cargo being driven by MS-8 through 8 channels of amplification from three aftermarket amps. I would also prefer to try to get low level RCA signal from head unit to feed MS-8 with thought being the less components in the signal path, the better. What are my harness options?

PM replied.

Oh no no it will be shipped to my resident brother at Redwood City CA 94065 and I will handle the rest.

Keep me posted my friend.

Originally Posted by gunman168

Oh no no it will be shipped to my resident brother at Redwood City CA 94065 and I will handle the rest.

Keep me posted my friend.

http://www.bimmerfest.com/forums/sho...4&postcount=51

If interested, please use PM with your PayPal information for an invoice.

will this work for 01 530i with dsp

Originally Posted by RichDeezy

will this work for 01 530i with dsp

As stated in the title and in the first post, this harness is for Logic7 (MOST) systems.

Hi, I cannot pm anyone yet because I just made my account, I bought a 2008 335i yesterday and it has the logic7 system, I want to buy one of these pnp harnesses asap, but cannot pm you, my email is 18000rpms@gmail.com, i have paypal ready please let me know where to send payment

The Logic7 harness/LOC is on backorder for the next 2-3 weeks...

@ capnmorganxx: Thx for this informative pictures.

Do anybody know the BMW-part-nr or TYCO-nr of the 2-pin power-connector on amplifier ?

Amplifiers before 09/2009 where powered via pin 10/20 of the 20-pin-connector and from 09/2009 with this 2-pin power-connector as load-part and for the logic-part on the small pin 1 in the FO-Housing.
BR sausewind

Logic7 harness/LOC is back in stock...

Originally Posted by sausewind

@ capnmorganxx: Thx for this informative pictures.

Do anybody know the BMW-part-nr or TYCO-nr of the 2-pin power-connector on amplifier ?

Amplifiers before 09/2009 where powered via pin 10/20 of the 20-pin-connector and from 09/2009 with this 2-pin power-connector as load-part and for the logic-part on the small pin 1 in the FO-Housing.
BR sausewind

The Premium OEM amp with the separate 12V/ground connections (from the standard 20-pin) changed the topology of the outputs voltage in a way that makes the standard signal sensing circuits remote trigger unreliable when those outputs are tapped.

So it is useless to tap those outputs so a signal sensing circuit generate a remote turn on signal. It will not do it most of the time unless the volume is cranked up beyond acceptable.

The Logic7 harness/LOC still will convert the woofer level outputs to low level, but the remote turn on signal will have to be tapped from another source -pin 13 in the back of the iDrive unit or the thin black wire located behind the right corner of the rear seat cushion, for example.

I would like to purchase your harness. 2008 335i convertible

pm sent.....

Did any of these modification effect your bluetooth or navigation? The reason I'm asking is that I just purchased a 06 750Li and the previous owner installed an Alpine amp in the trunk (powers all inside speakers - no aftermarket sub). When I make a call or try to use my navigation I cannot hear any sound. Does installing an amp cause the blue tooth not to work?

Originally Posted by Jvice77

Did any of these modification effect your bluetooth or navigation? The reason I'm asking is that I just purchased a 06 750Li and the previous owner installed an Alpine amp in the trunk (powers all inside speakers - no aftermarket sub). When I make a call or try to use my navigation I cannot hear any sound. Does installing an amp cause the blue tooth not to work?

You need to take your car to an audio shop to determine where the wiring problem is at your OEM amp.

This is outside the scope of this thread.

Guess i need 1 post to pm.

Originally Posted by whittywhit

Guess i need 1 post to pm.

Got your PM...

Does this harness work for a 2006 750 li and what is pm

Thanks I will PM you also

Technic, PM sent, need kit sent to 85339. Also, sorry if this is already answered in an earlier post, which amp/sub combo do you recommend for big bass and clean install.? I want to power interior speakers, subs, and aftermarket subs. Thanks

Originally Posted by HotWomenTherapy

Technic, PM sent, need kit sent to 85339. Also, sorry if this is already answered in an earlier post, which amp/sub combo do you recommend for big bass and clean install.? I want to power interior speakers, subs, and aftermarket subs. Thanks

If this is a Logic7 system -MOST fiber optics- then my harness will not work. You will need either to code your OEM iDrive unit to output Stereo (high level outputs), replace/fix your Logic7 OEM amp, or replace you OEM amp with a mObridge DA2 MOST to analog outputs converter.

Then you can use the harness to wire your aftermarket amp outputs to the OEM speaker wires without cutting/tapping/splicing them. Otherwise it will not work.

Still selling harness for logic 7 e65 ?