Car starts without key!

Hello Everyone,

I'm having trouble with the ignition switch/starter relay. I've been working on my 70 Dart for awhile now and almost finished. The previous owner had a push button start in the car, but would shut off when the key was in the 'off' position. I saw the yellow ignition wire was cut at the relay and I rewired it.

I hooked up the battery today to make sure I got power to the gauges and the starter motor immediately turned over when the ground cable was touched to the post and the the key was in the off position.

I have done some research and think its the ignition switch itself. I'm pretty sure that I have the starter relay wired correctly. I have it wired as follows:

Large starter wire: to starter relay post.
Battery positive: to starter relay post. (Battery in trunk)
Small starter wire: to 'square' post on relay.
1st Push on connector: to Ground. (NSS is not hooked up, just going to ground)

2nd Push on connector: Yellow ignition switch wire. (Traced back to bulkhead and wire looks good, inside car, coming out of the bulkhead looks to be untouched)

If I remove the yellow wire from the relay it does not turn over when the battery is connected.

Should I replace the ignition switch or is it something else? I have the Haynes manual, but have a hard time following wiring diagrams.

Thanks for the help.