Electric ariel wire to cut for switch mod?

[finchy]

Hi all, i know it's been covered before but i'm still unclear exactly which wire to cut for the switch mod. I'm installing an aftermarket stereo.

Is it the blue wire on the black plug, or the blue wire on the white plug further down? The blue wire that comes out of the unit into the black plug then turns into a black wire on the white plug!   s:shock: :shock: s:shock:  

[nathanMR2]

Not sure which one of those it is. However i cut into the wires under the drivers side rear bin, where you'll find a relay.

[s12vea]

I use the blue wire on the iso adapter (accessory)

[Markb]

Blue on the iso lead.......alot of iso leads actually have their function written along each wire.