plug was cut off so i have to hard wire the radio. i hooked up the power and ground, the radio turned on, but so did the anti theft. i disconnected the wires and still doesnt start. i also tried taking off the battery cable just to see if it would reset... no luck. and ideas or suggestions?

This is not an 89 Delco radio is it?

This is not an 89 Delco radio is it?

The radio wiring has nothing to do with the anti-theft on an '89. The classic issues with Passkey are broken leads in the steering column , or dirty contact s for the key chip.
I usually measure the resistance of the key chip, and substitute that value with a resistor soldered to the two white wires at the connector at the base of the steering column. They're usually sheathed in an orange/brown sheath.