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Ethincal/Moral Dilemma

 
Old 10-14-2010, 06:04 AM
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jon928se
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Default Ethincal/Moral Dilemma

I'm putting a new alarm in the GT.

The factory alarm is gone - but the plugs for it are still there. And I will be using some of the connections from those plugs.

As I go I'm repairing the looms where previously alarms have been installed (by people not qualified to hold a pair of wire cutters let alone a soldering iron.)

Here's the dilemma. The additonal alarm controller is actually an 8 pin relay with it's own relay base in the centre console. I no longer have room for the relay base and I don't have any of the small (about 1/8") male connectors to connect into the signals I want ( lock cylinder lock and open signals.)

Do I

a) wait and get some connectors and find someway of keeping the relay base?

or
b) cut off the relay base, insulate the wires I don't want and put 1/4" spade terminals on the ones I want to use.

I am tending towards b) as I can't ever see anyone wanting to restore the factory alarm.

Thoughts ?
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Old 10-14-2010, 06:09 AM
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danglerb
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If the wires in the loom have already been spliced, why worry about keeping it virgin?

Reliability I think trumps "original condition" for alarm systems. Maybe document exactly what you change, but sounds like overall you are cleaning the wiring up.
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Old 10-14-2010, 06:14 AM
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Tails
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Jon,

I fitted an imoboliser system into my S4 without cutting any wiring at all, by using spade connectors into the circuits required at the CE plugs connectors, so I can remove the imoboliser and revert to stock, so in view of my experience I would go to your option b).

My alarm was installed 10 years ago in conjunction with the factory fitted alarm and it has three circuits imobolised, ignition, fuel pump and starter motor IIRC. There is no conflict at all between both alarms and both are fully operational.

Tails 1990 928S4 Auto
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Old 10-14-2010, 06:31 AM
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jon928se
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Originally Posted by Tails View Post
Jon,

I fitted an imoboliser system into my S4 without cutting any wiring at all, by using spade connectors into the circuits required at the CE plugs connectors, so I can remove the imoboliser and revert to stock, so in view of my experience I would go to your option b).

My alarm was installed 10 years ago in conjunction with the factory fitted alarm and it has three circuits imobolised, ignition, fuel pump and starter motor IIRC. There is no conflict at all between both alarms and both are fully operational.

Tails 1990 928S4 Auto
I've no choice on using the factory alarm - the main control unit was gone when I got the car. And the system I'm fitting does both alarm and immobiliser functions. as well as remote hatch release, interior lights on disarm and auto window and sunroof closure (very simple to effect as it has a connection pulled to ground for 45 secs which can be connected to the lock signal which then uses the cars in built auto closure.)

As far as immobilising is concerned the alarm I'm using has two circuits. I will use 1 for starter relay signal (this is a normally off relay powered on by a disarmed status) and 2 the EZK relay signal (this is a normally on relay powered off by a alarmed alarm) and as EZK relay powers both LH and EZK ECUs - without these powered up nothing runs. In the vent of failure bridging both of the cars relays will start the car. None of the rest of the alarm functions affects the car running.

I think I'm going with b) - no further use for the relay socket. Makes life easy.
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