2000 pontiac grand am gt

im trying to install a bypass got three of the four wires but dont understand the fourth one can anyone help me out here's a pic of the instructions its the brown one i dont understand i'm probally gonna need some help installing the viper160xv if anyone has some tips for me that would be great its going in a 2000 pontaic grand am gt thanxtrying to learn something new everyday!

On your remote start unit, there is or should be a wire labeled GWR, Ground While Running, or maybe it is labeled Status output.  This wire will allow the bypass to only be active when under a remote start situation.

im looking at diagram but dont see that wire can you take a look at the manual of the viper160xv page 26 or 27 and let me know what you thinktrying to learn something new everyday!

On the Viper 160xv it's called :

BLUE     (-) 200 mA STATUS OUTPUT

Soldering is fun!

thanx for the fast responsetrying to learn something new everyday!

i'm not seeing that wire only blue/white (-) 200ma 2nd status/defogger its on page 42 of the manualtrying to learn something new everyday!

That one will work also.  Just make sure it is still programmed to (-) 2nd Status Output.Soldering is fun!

another thing i'm having trouble with is this car has a one wire lock and unlock whats would be the easy way to hook this up with a relay or diode?   trying to learn something new everyday!

The one wire lock system has a few solutions.  Your Viper unit outputs a "Flip-Flop" type signal for Lock & Unlock.  A simple doide on the Lock output and a diode & 1500 ohm resistor on the unlock output wire might work.  IMHO opinion, relays are the best solution.  The remote start units I use only output a (-) Lock / Unlock signal and don't have internal relays.   I always use the relays method for the one wire systems.  Here is a link to the Bulldog wiring  :  http://www.bulldogsecurity.com/diagrams/extrainfo/diagrams/15941_GRAND-AM_GRAND%20AM%201%20WIRE%20JBS%20UNITS.pdf   The top diagram would be OK for you Viper.  Additionally, you cold omit the fuse and +12v connection and just connect the White & Yellow wires to ground (Pins 85 and 87 ).  Then switch the Lock / Unlock wires between the relays, using the Vipers (+) outputs. Soldering is fun!

thanx that was really helpful i'm gonna do it that waytrying to learn something new everyday!