Help with kill switch installation, 97 Tahoe

[solaralexx]

Hello! I am a new member with no mechanical experience but very comfortable with soldering. Please correct any misunderstandings if you see them

I recently bought a 1997 Tahoe 4dr 4WD and want to secure it by installing a killswitch. From ShadowRejects's post here I understand a simple way is to wire in a toggle switch to the ignition power wire. However, from capricefrk013's post here I got my hands on the Bosch relay guide which has this cool idea:

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(I added the numbers myself)

Q) Am I correct in thinking that it is possible to implement this under the dash just by splicing into the ignition harness and adding these components?

This page has a table mapping each ignition harness wire to a color. This video shows a nice clear view of the ignition harness for a 96 burb which I assume will be similar to mine:

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Q) Is it correct to say wire #1 above is the YELLOW or PURPLE wire powering the starter solenoid?
Q) Is it correct to say wire #2 above is the RED 12V constant wire, and what does this wire do?

Thanks a lot!!

 

[GoToGuy]

Have looked in the 96 service manual wire diagrams to confirm what circuits your trying identify. It seems your guessing right now. I would have the wire diagrams opened to know exactly what I'm doing.

 

[solaralexx]

OK, I (eventually) found them. I think I'm going to head to work and abuse the printer for a while...

 

[Erik the Awful]

I don't know who drew up that diagram above, but that's not going to work. Hit that switch and all you'll do is blow that 5a fuse. Nothing else happens.

 

[solaralexx]

I don't know who drew up that diagram above, but that's not going to work. Hit that switch and all you'll do is blow that 5a fuse. Nothing else happens.

Yes, the switch needs to be open to start the vehicle, but you close it after turning off the ignition to arm it