Troubleshooting Guide for Installing Dension Products
12
P. No sound on a BMW – only control
There might be
2 specific
root causes to this issue:
-
The car has a DSP unit installed
-
The CD-Changer plug has not been connected correctly on GBL3BM1 (17-pin – also known
as Round-pin connector)
DSP:
If the car has DSP, the device is not compatible, due to the design and architecture of the
Gateway. DSP systems require a digital input but the Gateway provides analogue output only, thus
there will be no sound, only control. The DSP unit is rare, and there is no indication of it on the radio.
Check the Tuner to tell: if there is coax connector on it, it is a DSP based system
CD-changer plug
: The CD-Changer plug is a separate cable (comes with the 17 PIN plug) which ends in
a 10 pin white ‘molex’ connector. This connector can be connected 2 ways to the head unit’s CD-
Changer port. If the radio connects to the Gateway but there is no sound, it might indicate improper
installation. Rotate the white connector by 180
°
and plug it back in.
Q. Other issues (Gateway is not recognized, Alternator noise)
Gateway is not recognized:
This could happen if the ground cable is not connected (in case of VW or
Audi) or the installation is incorrect (not easy to do it wrong but… happens). Another cause could be a
damaged cable, preventing the car configuration resistor from operating (it will set it to BMW)
Alternator noise:
This is an extremely rare problem. If it happens, it means there is an issue with the
cable or the hardware. T
he whole package has to be replaced
(HW and car harness).
R. Firmware update
We constantly improve our firmware, so it is highly recommended to perform a firmware update first,
if an issue/problem arises. The update procedure on devices with a USB port is simple.
Extract the G3AH_UPD.ROM file from the update package and copy it to the root of a USB flash drive,
then connect the USB drive to the Gateway Lite when it is powered up. If there is an iPod connected
to the Gateway Lite you can leave in any playback mode or status, you do not need to disconnect or
stop playback.
Update procedure will start automatically within a few seconds and takes approximately 1 minute.
Do
not disconnect the USB drive within this time.
During the update the head unit (car stereo) might turn
to tuner mode while the Gateway restarts.
When finished, change the source to CD-Changer to use the Gateway again.
After a successful update G3AH_UPD.ROM is deleted from the USB flash drive and the GW_EES.BIN
file will be written containing the new software version.
