So I've wired up most in the engine bay on my S5 Turbo without much issue thanks to the labeled/terminated harness from Haltech. But now when I came to the cabin side I came to a screeching halt. I'm somewhat knowledgable when it comes to electronics but now when I was to wire up the leads to the ignition switch (key barrel) it's like I have no clue what goes where even with the manual in hand.

I'm worried I am gonna mess up the wiring and fry the ECU. So the wires I am having trouble with is the one going to Ignition (Pink) and the starter motor solenoid (Orange/grey. Should I solder them to the exposed terminals on the key barrels itself or splice them into the wires further down. The wire gauge on the keybarrel is like a 8 or something so the snaplocks I have most likely won't even fit anyway. Some help would be gold

Rob

 

I came off the fuse box for the pink ignition. After my chassis rewire a had a spare fuse space open. I also went with the deluxe fuse/relay kit fro Haltech. Added a larger fuseable link box for the ecu and fuel pump leads.

 

Hey

Thanks for shedding some light on this. I was just going to use the included relays for the fuelpump. You reckon its not enough? Got a dw300 pump in the tank.