where is the ignition wire under the dash on a 2002 sierra 1500.
2002 GMC SIERRA
160,000 MILES
MECHANIC9
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i am installing a pro start ct-3371.
Nov 30, 2011 at 3:27 AM
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RASMATAZ
CERTIFIED EXPERT
75,992 POSTS
The big red wire at the ignition switch connector is the power input feed-you gonna have to find the ignition circuit by turning switch to run position and check for 12volt output on its wire other then the accy circuit-