2004 Chevrolet Silverado 3500, Scytek A15 Alarm

2004 Chevy Silverado 3500 Base model Scytek A15 Alarm I got everything to work but 2 wires left. Alarm: White Wire           (+)(-) Selectable Light Flash Output Black/White Wire     (-) 500mA Dome Light Output I found the -Negative Parking Light wire at the BCM Brown Plug(Gray/Black Wire) I found the DomeLight Supervison wire at BCM Black Plug(Gray/Black When i connect both of them, none of it works. No flash light or domelight on. Crazy thing is if I swap the wires to each other, it flashes the domelight inside the truck and the parking lights stays on for 30 sec. Would I need a relay for both wires for it to work properly?

You will need a relay for your dome light supervision to covert the negative output of the alarm to positive 12v feed for the dome light. Your selectable light flash output needs to be switched from + (positive) to - (negative output). No relay required - you're activating the parking light relay built into the truck.

Thanks for the replY. I understand for the dome light. Now, how would I switch from positive output to negative output? Or can I just find the positive wire in the kick panel and connect through there? Would it work?

As per the manual: WHITE WIRE: Parking Light Output (+/-) relay. Connect the White wire to the circuit that shows +12V or ground only when the parking lights are on and set the internal parking light relay jumper to the proper polarity You have to change the jumper inside the unit. Considering you already found the correct negative trigger parking light wire, it's easier and better to just change the jumper.

catback wrote: As per the manual: WHITE WIRE: Parking Light Output (+/-) relay. Connect the White wire to the circuit that shows +12V or ground only when the parking lights are on and set the internal parking light relay jumper to the proper polarity You have to change the jumper inside the unit. Considering you already found the correct negative trigger parking light wire, it's easier and better to just change the jumper.

You're a life saver. Stupid manual that came with the alarm doesn't state anything about relay and jumper anywhere. Learned about relay here.