Push Button Start

Depends on how you did all this. You still using (and likely should be) the factory neutral safety setup? That is the transmission switch, and the firewall relay? If so, it's a simple matter of wiring your push button to power, and running the other wire and splicing into the yellow start wire coming out of the steering column.

If you don't have/ not using the factory scheme, it's important that you not bypass the NSS switch