on the front of the fuse box use a test light or meter and with the ign off look for the loom with 5 wires its the only one near the drivers door these are from the ign switch cant remember of the rop of me head which one but test them all you will have a starter wire a live wire and a ign live this is what you wont it is live when the ign is on and during crank plus when running if any problems let me know and i will get you the colour hope this helps.
And shocker yes you did mate lol.
Mpower you should never take a feed from the radio as it will cause back feed and static through the radio buddy its not rated for it.