1997 dodge ram Auto Trans wire?

I am installing a remote starter in a 1997 Dodge diesel truck.  Im tring to find a neutral safty switch.  The instructions came with the starter say to find a wire the show -12VDC when in Park or Neutral.  I cannot find such a wire? Does it exist?  It also says that I can use the parking brake switch instead, but this too, also must show -12VDC or ground when the brake is set.  The swittch on the top of the parking break always shows ground regardless of the position.  I think the starter circuit runs through this normally open switch, but I'm not sure.  Any help would be great, thanks

I don't believe you need to wire that unless you had a 96 or older Dodge Dakota. You can either wire it directly to ground or to a toggle switch and then ground. The switch would allow you to disable remote starting (valet) if you lent your vehicle or had it serviced. To be safe though when your all wired up put the key in and unlock the transmission. Place the shifter in drive and be ready to press the brake. Now try remote starting. Also try it with the shifter in reverse. If it attempts to start then you'll need to try to find a nuetral safety switch again and wire it in but I'm pretty sure you shouldn't need it.

thanks that was what I was hoping but I wasnt sure Ill try it and let you know.  Thanks again

From looking in the owner's manual, here is what i found. Just click here for the manual. It appears to me that it most likely has like a 30 second wait to start mode by setting it for Diesel. At least that's what I've seen on some other brands that don't use a specific input wire. Here is an excerpt from the owner's manual.... Feature #27 Gasoline Or Diesel Engine (Factory Default Setting Gasoline) This feature changes the system's timing of the ignition and starter output sequence for remotely starting vehicles with a diesel engine. Programming Gasoline or Diesel Engine: Follow Steps 1 to 4 on page 28; at Step 4 the Valet Switch will be pressed and released twenty seven times. The system’s response will be twenty seven siren chirps, and the Status Light flashing twenty seven times, pausing, then repeating. Within 10 seconds, press and release the transmitter/transceiver’s "Arm/Lock" button to configure the system for gasoline engines (the siren will chirp once) or the "Disarm/Unlock" button to configure the system for diesel engines (the siren will chirp twice). I hope that helps you and answers your question. Post your results. Thanks, Steve

Thanks iskidoo and ween for your posted comments.  I grounded the wire,  programmed the alarm for a diesel.  It does have a built in wait time.  The alarm and  the starter work great.   Thanks again for the advice