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BMW E46 Subwoofer System by BSW Installation Guide:

d110.e46s for BMW 3 Series Sedan ’99-’05 (E46)

Tools Required:

Panel Removal Tool

Flat Head screwdriver

Crimping Tool / Wire Cutters

Metric Socket Set

Brain

We’re going to proceed as follows:

1.

Disassembling the trunk

2.

Power/ground wire connections

3.

Making appropriate wiring connections for audio inputs

4.

Installing the subwoofer enclosure

5.

Tuning/testing the system

Disassembling the Trunk Panels:

If your Sedan has fold down seats, we will only need to remove the carpeting from the Driver’s Side 

of the trunk. If it does not, it’s easiest to remove the entire trunk lining.

If your vehicle is HK equipped, you’ll need to remove your factory subwoofers prior to installing the 

D110 enclosure. Simply remove the four 8mm bolts that secure each enclosure to the rear deck and 

tuck the wiring harnesses back into the rear deck.

 

1.

Begin by removing all items from the trunk of the vehicle. Make sure that all tail lights are 

in working order. If not, now is a good time to replace them. Also remove the carpet that 

covers the floor of the trunk, as it will reveal several fasteners that will need removing.

2.

Start by removing the taillight covers on both sides of the vehicle. Turn the knob on each 

taillight counter clock-wise until the cover becomes loose (Figure 1).

 

 

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Any reproduction, distribution, modification, or dissemination of these instructions without written permission from Bavarian Soundwerks is 

expressly forbidden and a violation of international copyright law.  Any violation will result in prosecution to the full extent available under the 

law!

© Bavarian Soundwerks, LLC.

2195 Defoor Hills Rd., Suite D, Atlanta, GA 30318

P: 404.963.8857 | 

www.bavsound.com

 

Summary of Contents for BMW E46

Page 1: ...e the four 8mm bolts that secure each enclosure to the rear deck and tuck the wiring harnesses back into the rear deck 1 Begin by removing all items from the trunk of the vehicle Make sure that all ta...

Page 2: ...nel Remove these using your panel removal tool 6 DO NOT Remove the two fasteners on either side of the rear of the carpeted panels where the three panels seemingly come together You will need to remov...

Page 3: ...process You ll want to make sure and put the trunk lining back in before you install your subwoofer enclosure However make sure that you have all wiring connections completed before you re install the...

Page 4: ...are connected should you install the included fuse into the in line Ground Wire Large Gauge Black Wire We recommend using the factory grounding point shown above right on the outer wall on the driver...

Page 5: ...ck approximately of the insulation from the wires exposing the copper wiring itself twist one side of the factory wire that you cut in half together with either the included blue remote turn on wire o...

Page 6: ...tory amplifier Blue w Black Stripe twisted with Brown w Orange Stripe Yellow w Black Stripe twisted with Brown w Orange Stripe 3 Now orient yourself with the Line Output Converter that you received wi...

Page 7: ...e more time being sure to verify colors are correctly matched and correct any mistakes if present 5 Go ahead and plug in your RCA cables into the LOC and then clean up your work with a couple of the s...

Page 8: ...release latches Remove the latch bolts with an 8mm nut driver Carefully pry the latch from its clips in the rear deck This will reveal the front mounting holes for the new D110 enclosure Also fold dow...

Page 9: ...en placed over each knob bolt combo bolt through the washer Place one of the quick release knob bolt combos into one of the exposed seat release mechanism holes 6 With the enclosure secured you can no...

Page 10: ...u Insert the front brackets Side with BSW logo into the holes shown below Now push the enclosure towards the rear of the car opening of the trunk as far as you can and lift the rear side closest to ca...

Page 11: ...in enhancing the overall listening experience To do this simply knock out the metal rectangle shown below using either your fists be careful or some sort of blunt object rubber mallet etc There is a v...

Page 12: ...n the amplifier at the factory but you ll want to fine tune things based on your own listening preferences and sensitivities Gains Begin turning up the volume until you hear the music at a reasonable...

Page 13: ...correct remote turn on wire This is a very common oversight Set your DMM to direct current and place one lead on the ground terminal of your amplifier and one on the remote turn on terminal Turn the...

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