1967 MGB Roadster, Positive Ground System

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=24940
Printed Date: June 01, 2024 at 11:09 AM

Topic: 1967 MGB Roadster, Positive Ground System

Posted By: grayfoxx
Subject: 1967 MGB Roadster, Positive Ground System
Date Posted: January 20, 2004 at 3:10 PM

I am looking for a little help with the wireing of a 1967 MGB Roadster with a positive ground electrical system. I am going to install a commando 2020 security system. I am going to only hookup the shock senser and motion senser. I would like to also hookup the parking lights to flash when setting the alarm. The unit will do all of these things, but its made for a neg. ground system. Any ideas on how I can wire the parking lights to flash?

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Thanks,
Grayfoxx

Replies:

Posted By: lspker
Date Posted: January 20, 2004 at 8:52 PM

The last 67 B we did was neg ground. As long as you pay attention to the polarity of your wires, and isolate from the body you'll be fine. You may need a relay on the light to invert the polarity to get them to work.

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