whats the thing called thats under the key ignition of a pontiac montana2003 on 2003 Pontiac Montana

its like a square shape little box thatsunder the key ignition . rite under it . ?

Asked by for the 2003 Pontiac Montana
1 answer
its either the Ignition switch or pass lock security transponder/reciver.
How many wires and are the wires big or small?