Looking for the Data Bus Imput for a 2003 silverado to hook to the Data Bus Output on a 456g. Also need the (-) door trigger imput of the truck to hook to (-) door trigger output of the same 456g. I know that I could use different mods now, but I'm this far and don't want to change everything. Thanks in advance.
Data bus should be violet at the OBDC plug under the dash and the negative door trigger is an output for a security system trigger. If the unit you are installing has an alarm built in then hook this to the (-) door trigger input
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Oh...about an hour.
The unit i have does not have a alarm. the 456g has these wires I can explane all but those two and i understand your explanation of the violet wire. dont understand the door trigger wire. let me know. thanks
456g
red power input red ignition harness
black chassis ground ground screw
grey/black dome light input grey/black black plug pin e at bcm
RED / white non keyless programing not used
blue (-) status input (-) keyless programming orange on remote start ground when running (-)
ORANGE / white not used
orange black not used
green ???????? (-) door trigger output
violet ????????? data bus output are you saying violet at obdc plug under dash
why dont they make it easy i appreciate your help and quick response
Yes use the violet at obdc plug, try to get your connection at least 6 inches away from plug. And the green (-)door trigger wire gets hooked to the green (-) door trigger wire from the alarm being installed. If there is no door trigger input then just cap the wire and do not use.