isolating neutral signal

Help..

I have an 08 Nissan w/ a manual trans. On the trans is a neutral position sensor.  The sensor has 2 wires going ot the BCM (I believe). I think it's a MUX, or some sort of signal other then a simple (-) ground signal. 

I would like to use this switch w/ my remote starter to tell it when the truck is in neutral.

How can I isolate ths signal to throw a ground signal to the remote starter when it's in neutral, and still not effect the signal going to the BCM. Diodes?? 

What kind of Nissan do you have?  All the Nissans I have seen have a simple (-) signal coming from the P/NP switch mounted inside the tranny to the ECU.  I have access to most of the Nissan service manuals, so if you tell me what kind of Nissan you have I may be able to look it up.

If you do need to use relays make sure you use a relay with an extremely small amount of current draw, as a standard automotive relay will kill your battery in a short amount of time.

It's a 2008 Nissan Xterra (X).  It has the 6 speed manual in it..   Any help w/ the FSM would be great I have been looking for the factory manual w/o such luck..

I don't have access to the '08 manual yet, but the '07s P/NP switch is connected to pin 102 of the ECU (NOT BCM, completely different box).  The color is orange and it is at ground when the tranny is in N and 12vdc when the tranny is in any gear.

There are two wires on the switch, one goes to ground the other goes to the ECU.  The 12vdc voltage is most likely the result of a pull up resistor inside the ECU (ie don't try to power a relay off of it).

Thanks for all of the help.. I am going to put a 561 into the truck over the weekend.. I will let you know how i make out..  I am not going to bother to dioade it. I am gonna run it right off the wire..

Thanks again..