TrailBlazer 2002-2009
2023- The TrailBlazer, originally introduced as an upscale Blazer, was produced from 2002 to 2008 with a powerful I6 engine and with a monster V8 offered in the Trailblazer SS
Platform: GMT 305, 360, & 370.

Factory Radio Help

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Old Feb 3, 2020 | 4:00 PM
  #1  
Nick.314's Avatar
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Default Factory Radio Help

Ok so I have a 2002 Trailblazer and when I purchased the car the factory radio was cut out. So I rewired it so I could hook the radio back up and when I plug the factory radio back in, the display doesnt come on but the lights for the keys on the radio do and my car wont crank or start. The dash comes on but glitches and the gauges dont work. It kinda sounds like the dash keeps resetting or something. When I unplug the radio the car works just fine. It will start up and have no problems. But when plugged in nothing works.
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Old Feb 3, 2020 | 6:50 PM
  #2  
oilcanhenry's Avatar
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Joined: Oct 2017
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From: USA
Default

Originally Posted by Nick.314
Ok so I have a 2002 Trailblazer and when I purchased the car the factory radio was cut out. So I rewired it so I could hook the radio back up and when I plug the factory radio back in, the display doesnt come on but the lights for the keys on the radio do and my car wont crank or start. The dash comes on but glitches and the gauges dont work. It kinda sounds like the dash keeps resetting or something. When I unplug the radio the car works just fine. It will start up and have no problems. But when plugged in nothing works.
Might be a security system issue here.
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