Hi everyone , just wondering if you can help me out .
i have a 2003 sunfire and want to put in a stereo.
i have the the wireing harnes, but was told i need
to bi-pass the wire for the computer?
I hope this is enough info , thanks for any help you can give .
Replies (6)
UKinstaller on 10/14/2004 08:11:12
eh i'm not too familiar with what you are talking about. give us a little more detail.
-UK
Victor on 10/16/2004 16:51:08
dude.. we need a lot more info, for us to try and help u out.
firsttime33 on 10/16/2004 17:31:21
hi all , ok i bought the harness to wire in the stereo.
but was told i need to run a wire from the fuse panel to one of the wires on the on the harnes so the computer would not screw
up. and i need to know what wire i need to run to .
so i am told it started form the 2000 models and up.
hope this is enough info , thanks for your replys .
uochronos on 10/16/2004 21:57:40
hmm that is wierd... perhaps they where talking about runing your ignition wire from the fuse box? i'm unsure here sounds to me like an unusual thing to have to do.
Chronos
swez on 10/17/2004 10:52:49
Is one of your computers integrated to the stock HU? Most GM's have an ECM (Engine Control Module) and a BCM (Body Control Module). There is often a 3rd/4th computer or data line for ABS brakes and Air bags. Definitely don't mess with Air bag deployment circuits as these babies will set you back close to a grand if you deploy one.
Most factory HU's are easily swapped with Aftermarket bretheren with minimal effort. Just pull out the stock one, use a conversion harness and install the new one using the harness... but ground the new HU to floor pan or fire wall. (NOT THE WIRING HARNESS GROUND)
The most basic wiring is power wire from HU to IGN/ACC in fuse panel. A constant 12 volt source off the battery for memory/clock functions, an Illumination dimmer circuit (can eliminate that one if you wish) a remote amp turn on wire, maybe a power antenna lead and speaker outputs.
I don't fully understand your comments about the new HU affecting the computers??? Can you explain that in some detail?
Swez
ttocs on 10/18/2004 01:30:50
there are parts of the car that may be multiplexed through the radio(dome light, door buzzer, ect) but I have not heard of any problems with the main computer related to radio's.
i have a 2003 sunfire and want to put in a stereo.
i have the the wireing harnes, but was told i need
to bi-pass the wire for the computer?
I hope this is enough info , thanks for any help you can give .
Replies (6)
UKinstaller on 10/14/2004 08:11:12
eh i'm not too familiar with what you are talking about. give us a little more detail.
-UK
Victor on 10/16/2004 16:51:08
dude.. we need a lot more info, for us to try and help u out.
firsttime33 on 10/16/2004 17:31:21
hi all , ok i bought the harness to wire in the stereo.
but was told i need to run a wire from the fuse panel to one of the wires on the on the harnes so the computer would not screw
up. and i need to know what wire i need to run to .
so i am told it started form the 2000 models and up.
hope this is enough info , thanks for your replys .
uochronos on 10/16/2004 21:57:40
hmm that is wierd... perhaps they where talking about runing your ignition wire from the fuse box? i'm unsure here sounds to me like an unusual thing to have to do.
Chronos
swez on 10/17/2004 10:52:49
Is one of your computers integrated to the stock HU? Most GM's have an ECM (Engine Control Module) and a BCM (Body Control Module). There is often a 3rd/4th computer or data line for ABS brakes and Air bags. Definitely don't mess with Air bag deployment circuits as these babies will set you back close to a grand if you deploy one.
Most factory HU's are easily swapped with Aftermarket bretheren with minimal effort. Just pull out the stock one, use a conversion harness and install the new one using the harness... but ground the new HU to floor pan or fire wall. (NOT THE WIRING HARNESS GROUND)
The most basic wiring is power wire from HU to IGN/ACC in fuse panel. A constant 12 volt source off the battery for memory/clock functions, an Illumination dimmer circuit (can eliminate that one if you wish) a remote amp turn on wire, maybe a power antenna lead and speaker outputs.
I don't fully understand your comments about the new HU affecting the computers??? Can you explain that in some detail?
Swez
ttocs on 10/18/2004 01:30:50
there are parts of the car that may be multiplexed through the radio(dome light, door buzzer, ect) but I have not heard of any problems with the main computer related to radio's.
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