2WSS-AS on 2002 Nissan Sentra SER Spec V

I went to two websites that both suggested DEI bypass modules.  One suggested the 555U and the other 556U.  How do i know which one to get?

I just now noticed a remote starter installation manual that instructs you to wrap one end of a peice of wire around your ignition switch and the other end around a key, and connect the two ends of the wire to a relay.  When you remote start the car is completes the connection and the car thinks that the key is in the ignition.  If you werent concerned about the immobilizer feature (which I'm not), then couldnt I just wrap the wire around the key and the ignition lock and connect the two ends of the wire (eliminating the relay)?  There is no power sent to 30 and 87 connectors on the relay anyways.  Here are the instructions i found.

Transponder interfacing using relay:

If the vehicle has a transponder system installed, you will need to by-pass the system

while the vehicle is operating under the control of the Remote Start Unit.

To do this:

1.You will need a transponder key that's already programmed to the vehicle.

2.Remove the trim around the ignition switch.

3.Wrap a thin (28 - 30awg) wire tightly around ignition switch 6 to 8 times and secure it.

4.About 6"down line make another loop of approximately 2"diameter.

5.Place the key inside this loop and secure it to the loop.

6. Connect on end of the (28 - 30awg) wire to pin (87) of the relay module.

7. Connect the other end of the loop wire to Pin (30) of relay module.

8. Connect the pin (86) of the relay module to the ignition wire from the ignition switch.

9. Connect the pin (85) of the relay module to the H10/11 yellow wire of 20-pin

connector.

Would this then also work?

Please let me know what you think!