immobiliser toad AI606

[Haribo!]

ok so im installing a toad immobiliser, its got 4 black wires

"Black Wires x4 (immobilisation wires)
- identified as a loop, by a tape or band at the ends
For correct operation, at least one of the immobilisation circuits must be ignition live and live while cranking.
Cut each circuit to be controlled (check current rating if in doubt) and then form an immobiliser circuit by
simply cutting each wire loop. Connect one end of the cut wire loop to each end of the circuit you wish to
isolate - polarity is not important. DO NOT MAKE IMMOBILISER CONNECTIONS TO THE NEGATIVE SIDE OF THE IGNITION
COIL. Re-tape the harness so that the immobiliser connection points are difficult to identify. Do not make
connections at places that a thief could easily identify or access i.e. do not make any connections close to the
ignition barrel or in the engine bay next to the ignition coil.
Note it is not possible to immobilise a permanent 12V supply"

the wires are in two sets of two, one with a white tag and one with a blue, on the wireing diagram two of them go to the igniton switch, this makes perfect sense but the other two go to a box that says "immobiliser"  this confuses me, they came from the immobiliser so how can they go there too?

Im sure im just being dumb but my two questions are:

1, what do those two wires do, where do they go?

2, out of the two sets, does it matter which are used for what?

plus any other tips would be great as its a right nightmare :p

[rubjonny]

what you are doing is immobilising 2 circuits, to do this you chop the wires then add the immob wires at each end of the cut. so you have power out from the switch, to the immob, then from immob to the other cut end. basically, immob is a complicated switch which is breaking the immobilised circuits till it is disarmed. this is why you need 4 wires to immobilise 2 circuits.

generally you immobilise the ignition feed for the coil, and the feed for the fuel pump. what i would do is splice to the wire from the fusebox to the coil, rather than the ign switch wires. a theif will easily be able to bypass it if you cut the ign switch wires, as this is the captain obvious place to put your immobiliser. if you do it on the fusebox to coil wire, a theif will have to know a lot more about a VW in order to steal it, plus get right behind the fusebox.

make sure you hide the box somewhere hard to get to, otherwise he can just find the box and trace the wires from it to find the immobilised circuits easy as pie

[Haribo!]

ah cool, sounds straight forward enough, thats one of the only things left to do, the alarm is pretty much hooked up.

Cheers dude