Today's Message Index:
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1. 10:31 AM - Will a Soundgate GMSW1 work with a C90? (Mike Piccin)
2. 12:26 PM - Re: Will a Soundgate GMSW1 work with a C90? (Roland M)
Message 1
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| Subject: | Will a Soundgate GMSW1 work with a C90? |
--> XDP4000X-List message posted by: "Mike Piccin" <mpiccin2@hotmail.com>
Hi, I have a 99' Grand Prix with steering wheel controls. So I bought a
Soundgate GMSW1 Interface
(http://www.soundgate.com/products/remote-audio/gm.htm) to make the steering
wheel controls still work. According to the Soundgate website the "Sony
radio must be RMX-2S or 4S Rotary Commander compatible" and a 1/8" mini-plug
is required to be plugged in the back on the Sony deck (you can see the plug
in the picture)...Well after taking out the C90 I realized that there's no
place to plug in the mini-plug! This Soundgate interface says if works with
all Sony ES recievers. Isn't the C90 joystick a RMX-2S? Any one have any
experience with this interface?
Thanks,
Mike
Message 2
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| Subject: | Will a Soundgate GMSW1 work with a C90? |
--> XDP4000X-List message posted by: "Roland M" <mdx400@hotmail.com>
I think this has been discussed in a little more detail before, but the
answer is that it is *possible* but it requires some modification of parts
somewhere along the line.
The RM-X2S and X4S remotes that use the miniplug on the back of the Sony
decks utilise a command protocol called SIRCS (Sony InfraRed Control
System). SIRCS is IR information modulated over an electrical wire (i.e. an
electrical equivalent of the light signal transmitted by a wireless remote).
The SIRCS line can be found on virtually ALL Sony electronics (not just car
audio) however it appears in different formats/connectors with varying
compatiblity and sometimes can only be accessed via internal taps on the
circuit board(s) of equipment.
In Sony car audio, SIRCS is found both on that green coloured minijack on
most Sony HUs as well as on the UniLink connection/cable. I remember
reading that SIRCS is also carried on the C90s wired remote connector but
since the connector is different, obviously the miniplug from the X4S, X2S,
or SoundGate adapter would not fit. However if you spliced into the wire
for the C90 wired remote you would be able to find the proper SIRCS wires
and be able to connect it that way, I believe. You could also go from
inside the C90 itself, tapping into the proper lines either on the remote
connection or on the UniLink connection. So there are a number of ways you
can probably make the connection for the SW1.
I know that it has been done on many cars with the GM steering controls and
the C90 combo, so it isn't something that no one has done--therefore you may
be able to find specifics on the internet (if not on the archives of this
very list).
Also one could probably figure this info out pretty easily with the C90
service manual (nicely available on the Matronics site :) ), AND a service
manual from a unit which carries the green minijack for the X4S/X2S remote
(unfortunately NOT found on the Matronics site). Then all you'd need to do
is figure out what connections you need on the minijack/plug (there would be
3--likely SIRCS, ground and something else) and find appropriate points in
the C90 to connect to.
Roland M.
>From: "Mike Piccin" <mpiccin2@hotmail.com>
>Reply-To: xdp4000x-list@matronics.com
>To: <xdp4000x-list@matronics.com>
>Subject: XDP4000X-List: Will a Soundgate GMSW1 work with a C90?
>Date: Sat, 7 Feb 2004 13:31:20 -0500
>
>--> XDP4000X-List message posted by: "Mike Piccin" <mpiccin2@hotmail.com>
>
>Hi, I have a 99' Grand Prix with steering wheel controls. So I bought a
>Soundgate GMSW1 Interface
>(http://www.soundgate.com/products/remote-audio/gm.htm) to make the
>steering
>wheel controls still work. According to the Soundgate website the "Sony
>radio must be RMX-2S or 4S Rotary Commander compatible" and a 1/8"
>mini-plug
>is required to be plugged in the back on the Sony deck (you can see the
>plug
>in the picture)...Well after taking out the C90 I realized that there's no
>place to plug in the mini-plug! This Soundgate interface says if works
>with
>all Sony ES recievers. Isn't the C90 joystick a RMX-2S? Any one have any
>experience with this interface?
>
>Thanks,
>Mike
>
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