Viper 791 vx in 2000 silverado

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=46673
Printed Date: September 06, 2025 at 7:25 PM

Topic: Viper 791 vx in 2000 silverado

Posted By: Curtislo
Subject: Viper 791 vx in 2000 silverado
Date Posted: January 02, 2005 at 2:46 PM

Hi everyone, I'm new to 12volt, I'm getting ready to put a viper 791vx into my 2000 silverado. Any help would be greatly appreciated, but my first question is, Do I need the 556U bypass and how does that work? Thanks very much
Curtislo

Replies:

Posted By: Teamrf
Date Posted: January 02, 2005 at 7:02 PM

No you will use the 555L or the 555T.

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~The Rookie~
Rookie of the year that is...
Don't let the smoke out of your equiptment..it doesn't go back in.

Posted By: mobileworks
Date Posted: January 02, 2005 at 7:13 PM

You can also use a code alarm plxr which is super easy to use and program and it doesn't require that you cut the passlock wiring at the steering column.

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Posted By: kgerry
Date Posted: January 03, 2005 at 2:16 PM

use the 555L or GMBP... the PLXR is defaulted for Ion's ( which means you'll have to reprogram it, whereas the GMBP is defaulted for Passlock II )and the 555T has been discontinued ( for a couple of years now )

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

Posted By: Curtislo
Date Posted: January 07, 2005 at 6:59 PM

Thanks guys I've ordered the 555L and hopefully will start putting everything in this weekend

Thanks
Curt

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