Becker Grand Prix User manual

Courtesy of:DiscountCarStereo.com
AUX Installation Guide for
Becker Radios with CD Changer
Not for digital systems (e.g. PCM2+, COMAND)
Created: August 1, 2015
Revised: April 19, 2019

Introduction:
Many European vehicle owners looking for a simply audio jack to play audio
devices on the car Radio while also retaining the CD Changer will be pleased to
find the AUX-BKR Adapter.
This AUX-BKR requires and retains the remoteCD Changer** to provide a
3.5mm dash mount Audio jack which can be used to connect and play all kinds of
audio devices including iPod, iPhones, Smartphones, Mp3 Players on the car
system without sacrificing the CD Changer.
Installation:
Warning! Although not critical, we recommend disconnecting the car battery.
Keep in mind that most Becker radios are coded and will not operate without the
code. Radio code must be available for radio to operate upon reconnection.
Remove radio from the dashboard to gain access to the connectors. A pair
of special removal tools (See Fig. 1) is required to remove the Becker radio.
Fig. 1
Radio removal Tools
1. To remove radio, slide tools into slots to detent position. Withdraw the
radio by pulling outwards. See Fig. 2
Fig. 2
2. With radio removed separate and disconnect the green and blue plugs
(C-2 & C-3) from Radio connector (See Fig. 3 )
Fig. 3
Becker Radio Connectors
Warning! The C-1 chamber (yellow) for vehicles with amplifier.
3. Connect Blue plug removed in step 2 to the 8-pin (black) connector on
adapter harness (See Fig. 4).

Fig. 4
harness connector
4. Mate Blue ISO plug from Adapter harness to Green plug removed from
radio in step 2 and this combination should be reconnect to radio (See
Fig. 5)
Fig. 5
mating plugs
5. Carefully route audio jack (See Fig. 6) to a location on the dash or
nearby panel where it will be mounted (within 4 ft.). This location will
vary based on vehicle and customer’s preference.
Fig. 6
Audio Jack
6. Drill a ¼” at mounting location on the dash etc., insert aux jack
threated end through the hole and secure with nut (See Fig.7)
Fig. 7
Warning! Should you decide to secure the jack to dashboard etc. make
sure the panel is 1/8” thick or less to allow threads on the jack to
protrude and engage the nut. (If necessary use a dremel or sander to
thin the panel). Drilling a hole to secure the jack is not necessary but
doing so makes for a stock appearance and easier to plug/unplug the
audio device .

Test Operation
1. Use included 3.5mm audio cable (See Fig. 8) to connect audio device to the
jack
Fig. 8
3.5mm male to male cable
2. Press the CD or unique set of buttons on Radio to enter CD Changer Mode.
Radio display will change to Track or Disc numbers (At least one disc must
remain in CD Changer.)
3. Select a track on audio device. Selected track will play on the car stereo.
Warning! Playlist and Track selection is *NOT* possible from the radio.
You must use the Audio device built-in controls to access music files.
4. Use radio volume knob to adjust playback level
Note: if playback is distorted, lower volume on audio device.
5. To listen to the CD Changer, simply disconnect audio device from the
AUX-BKR jack and operate Changer as customary.
Warning! AUX-BKR Audio jack must be empty when listening to the CD
Changer; otherwise CD Changer playback will be weak or distorted.
6. If correct operation is confirmed go ahead and reinstall Radio
Important Notes:
The AUX-BKR works on any factory installed Becker Radio in BMW, Land Rover,
Mercedes, Porsche, Ferrari etc. and aftermarket Becker Radios (e.g. Grand Prix,
Indianapolis, Cascade pro etc.) that also include an analog CD CHANGERS.
The AUX-BKR WILL NOT WORK with Fiber CD Optic CD Changer applications
(e.g. PCM2+, COMAND etc.)
Plug and play installation to Becker Radio with CD Changer in less than 10
minutes. No wire cutting or splicing.
** External or remote CD Changer refers to the optional Changer installed on the lower dash,
center armrest, hatch, trunk etc. (external CD Changer is not the Changer built-into the head
unit)
Disclaimer
• This product has no affiliation with Porsche, Becker etc.
• We’re not liable for misuse of this product.
•We recommend professional installation.
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