Bavsound BMW E90 Manuale utente
BMW E90/91/92 Subwoofer System Installation Guide:
uf110 for BMW 3 Series, 330i, 328i
’06-’13 – Standard Audio (HiFi)
You’ll need:
•Bavsound tool kit (or some variety thereof - the video highlights the tools needed for
this particular installation) - http://www.bavsound.com/product/414/361/BSW-
Interior-Disassembly-Tool-Kit/
•Wire Crimpers
•Metric Wrench / Socket Set
•Tunes in the garage (your choice)
Before you Begin
•Please review and familiarize yourself completely with these instructions before
starting work on your vehicle!
•Ensure that your bass and treble settings are set to their default middle positions
before installing your new speaker upgrade. Once you’ve installed your Stage
1, you can reset the bass and treble settings to taste. Keep in mind that we
generally recommend keeping them both very close to center as large
adjustments introduce distortion into the audio signal and will lower
performance of your system.
•Be sure and watch this video, which covers the amplifier connections on your
new Bavsound amplifier: http://vimeo.com/28744796
•And, once completed with the install, be sure and watch this video which covers
tuning the amplifier in your E9x: http://vimeo.com/72214312
The Process
We’re going to proceed as follows:
1. Disassembling the trunk – locating factory amplifier
2. Deciding on mounting location for the new amplifier
3. Making appropriate wiring connections for audio inputs
4. Power/ground wire connections
5. Installing the subwoofer enclosure
6. Tuning/testing the system
Disassembling the Trunk Panels:
We are only removing the driver side of the carpeted paneling in the trunk. Lift the
floor panel out of the trunk, exposing the bottom edge of the passenger side panel.
There is no need for further disassembly.
1. Locate the three (3) fasteners that secure the driver side carpeted panel to the
frame of the vehicle.
2. Using your Bavsound Metal panel removal tool, slide the fork of the tool
between the smaller head of the plastic fastener and the larger base, carefully
prying outward to slide the center fastener out of its outer casing. Repeat this
process on all three (3) fasteners.
3. With the fasteners removed and placed to the side, we now need to remove the
metal tie down that is located toward the rear of the trunk, closest to the back
seat. It is attached to the chassis using a Torx T40 bolt. This needs to be
removed as well as the plastic housing that surrounds the bolt.
4. With the tie-down removed, we now need to look to the center plastic piece
that sits along the edge of the trunk. It is attached by two (2) Philips head screws
on the top portion, and four (4) plastic fasteners along its bottom rear-facing
panel.
5. Now, let’s first remove the two Philips head screws that attach the top portion of
the panel. We need to use our Bavsound right angle pick tool to remove the
plastic covers on either side of the panel. Once removed, using a Philips head
screwdriver, remove the screws from either side of the panel.
6. With the screws removed, we now need to use our metal Bavsound panel
removal tool to remove the four (4) plastic fasteners across the lower portion of
the panel.
Take note: These fasteners can be VERY tight. Be patient here. Use the same
methodology as when removing the trunk carpet liner fasteners.
7. Now, with all of the fasteners removed, we can remove the plastic trunk lip panel
by lifting upward and toward the front of the vehicle simultaneously. Note the
metal trunk tie-downs that you will have to maneuver around when lifting the
panel upwards.
You may elect to remove the rubber gasket from the rear-most edge of the
panel at this point, as it will allow easier removal of the panel. Simply slide the
gasket toward you by firmly pulling on it using your hands.
8. It’s time to remove the driver side carpeted panel at this point. Using your
hands, free the panel from the edge of the trunk as shown in the photo, and pull
the panel inward toward the center of the vehicle. Once you’re at this point, pull
the trunk liner outward towards the exit of the trunk.
9. With the panel removed, you will see the factory amplifier and all of the
associated wiring harnesses shown below:
Mounting Location for New Amplifier
1. With everything removed, we now need to decide on a location to mount our
new amplifier. Most vehicles have ample room beneath the center floor piece, as
shown in the photo below:
2. The vehicle shown has a factory installed component present on the passenger
side, but as you can see there is nothing mounted on the driver’s side. Here is
where we will mount our new amplifier.
3. Place the amplifier in it’s location without mounting it, as we’ll now decide on
the appropriate paths for the wiring entering/exiting the amplifier. Ultimately we
will simply Velcro the amplifier to the chassis.
Power/Ground Connections for the new Amplifier:
*Before you make any connections, we must insist on disconnecting the negative
battery terminal from the battery. This will eliminate any chance electrical damage to
the vehicle.
Power Wire (Red Wire)
•You’ll want to run the large red wire to the positive terminal of the battery. We
need to first remove the 10mm bolts that attach the metal battery bracket that
covers the top portion of the battery.
•Once removed, loosen the 10mm nut on top of the positive terminal itself.
•Place the amplifier power wire ring over the bolt, and tighten the nut back
down with the terminal on the battery. This is the primary power supply for
your new amplifier. This wire will be connected to the +12 terminal on the
amplifier. Do NOT put the fuse into the fuse-holder until you have connected
the other end of the wire to the amplifier. Once you’ve made this connection
at the new amplifier, it is safe to install the included fuse into the fuse-holder
Ground Wire (Black (Brown) Wire)
This wire is connected to the factory grounding connector located on the passenger
side of the vehicle in the photo shown below.
To attach the ground wire, simply:
•remove the factory 10mm nut using your Bavsound nut driver
•slide the ring terminal attached to the ground wire over the factory bolt
•reattach the 10mm nut, being careful to firmly secure the nut.
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