anto1150

Thanks Bertrand, i just edited the original post

ChaoticBliss

Wanted to mention I just did this mod on my 1989 C4 (Canadian car) and the wire was violet on my car. So I guess it can go either way...maybe mine is a later build or something.

DobermanDad

I also have an 89 C4, and wire was violet.

porsche mania

Thanks a lot for this guy's. Just done this mod and it worked straight away. Mine is a 90 c2 and the wire was purple

kos11-12

Great work Anto,
Thanks for sharing , I will remove my wire from the coil and connect to the violet wire too,
Thanks

Spyerx

Ok i'm thoroughly confused. Does the below NOT WORK?
Or does the above work?
Or are BOTH options???

I'm installing cup heater blower bypass and will retain heat.

greaser5

Yeah. I need someone to explain this to me like I'm 5... With pics...

davidwilson11

I did mine like the above but only the loop from what can be best described as quarter past three. Ha ha did that even make sense.

Mines working but I'm putting an online fuse in to be safe.

porsche mania

Remove the green relay; now remove the relay support (2 8mm bolts). Underneath the green relay there's a violet (maybe green/yellow on early cars) wire: that's it! With the help of a tap-in squeeze connector, connect a wire to that violet one (I chose yellow because it usually stands for "switched +").
Now terminate the new wire with an appropriate spade, put everything back togather and you're done! Simple, effective and clear. The description is to tell you where to take power from and presumes you know what to do with the spades end of your new wire.
The spade end plugs into the same place the red wire is in the first picture on this thread. Simple as that!

porsche mania

There is no need for a fuse if done the way I've posted above as the voltage is minute.

davidwilson11

So do you only plug one spade end in? What one? The 9pm one?

anto1150

David, yes, it's the one at 9. If you have a look at post #1, pictures are quite clear, i think....

porsche mania

Yes, the other end is spliced into the purple wire

John McM

Finally think I have it understood. I will do the mod after my track day and put it all in pics from start to finish.

Spyerx

And the pic I posted that bypasses the relay, what's up w that one? No good?