Upgrade 350hv to 791xv how?

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=89238
Printed Date: July 12, 2025 at 3:10 PM

Topic: Upgrade 350hv to 791xv how?

Posted By: xxkevo
Subject: Upgrade 350hv to 791xv how?
Date Posted: January 19, 2007 at 11:03 PM

hey guy,

im new to the board and i never dealt with alarm before just simple speaker installation and stereo about it. i had my 350hv installed last year and i planning to upgrade to the 791xv, how hard would it be for me to upgrade it? is it just a plug and play swap then wire up the RS, or i heard something about the 12 pin harness being a little different'... can someone walk me through this please, i would greatly appreciate it... thanks

Replies:

Posted By: profuse007
Date Posted: January 20, 2007 at 8:04 AM

90% plug and play, for security and KE only.

1.12-pin harness on 350hv has extra yellow wire.
2.350hv disarm harness is diff. cut and connect to 791xv disarm wire.
3.antenna and wire is diff
_________________________________
do that above and then confirm.

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Houston,TX
"The two most common elements in the universe are H+ and stupidity" (Ellison).

Posted By: xxkevo
Date Posted: January 20, 2007 at 11:26 AM

1. so i just cut the yellow wire?

2. which harness is this one on? the h2 6 pin harness? how is it differen't? just rearange the wire? or i have to locate new wires?

3. antenna should just be a simple swap right?

thanks!

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