python 872 on an f 350

X2 with chek.  Use a Digital Multi Meter to locate and verify the trucks ignition wires.  H3 will go something like this.

H3/1 PINK (+) IGNITION 1 INPUT/OUTPUT                                                     WHITE/ Yellow     

H3/2 RED / WHITE (87) FLEX RELAY +12V INPUT (30A FUSED)              YellowH3/3 ORANGE (+) ACCESSORY OUTPUT                                                   Gray / YELLOWH3/4 VIOLET (+) STARTER OUTPUT (CAR SIDE)                                       Dark Green - cut vehicle sideH3/5 GREEN (+) STARTER INPUT (KEY SIDE)                                            Dark Green - cut key switch sideH3/6 RED IGNITION 1 +12V INPUT (30A FUSED)                                        YellowH3/7 PINK/WHITE (30) FLEX RELAY OUTPUT                                             RED / Black      **Viper default set at IGN2H3/8 PINK/BLACK (87a) FLEX RELAY INPUT                                              Not UsedH3/9 RED / BLACK ACC/STARTER RELAY +12V INPUT (30A FUSED)   GREEN/ PurpleH3/10 NC No Connection

If the truck has 2 accessory wires use a 30/40A SPDT relay and wire as below :

Acc2  Dark Blue/ Light Green @ ignition harness

Relay Pin 87    +12V constant GREEN/ Purple  thru 20A fuseRelay Pin 86    +12V constantRelay Pin 30     F350  Acc2  Dark Blue/ Light GreenRelay Pin 85     Viper  H2/12 (-) 200mA Accessory

Viper H2/15 Grey (-) Hood Pin - connect to Hood Pin Switch ( mandatory safety input )

Soldering is fun!

THAT DID IT!!!  All it needed was a little power! I'd like to take the time thank you guys for sharing your knowledge with guys like us in this bad-*** forum.  I will be revisiting as needed and recommending it to others.  I have already recommended to a buddy of mine who has been afraid to install his alarm for some time.  Forums like these make my life easier.

P.

Just Passing by...