keyless remote help on 2007 Nissan Sentra

have a 2007 nissan sentra 2.0 bought a remote for it on e-bay need to find out how to program the remote or ? please help

Asked by for the 2007 Nissan Sentra
I believe you are going to have to visit the dealership for this. Generally, you have to have access to an OE Nissan system to perform a reprogramming like this.