Thisguyuknow

Yeah you are making more work for yourself trying to get to everything under the dash. pull the back seat and install the system at the BCM. If you do it under the dash (which is commonly done) you will have to run wires all over the place to different spots. Almost everything you need is at the BCM with the exception of the connections for the remote start which are on the columb and the brake sensor (which) I ran up the wall to the third brake light. you will have to get ALOT of extra wire to make a harness that runs from the BCM area to the column for the ignition bypass/remote start stuff. I think mine ended up being something stupid like 15 feet. Well worth it for a clean install though and Minimal hacking up the harness under the dash.

r1lukasz

I pull that back seat found trigger wires at green plug , I am just missing dome light , any tips ? I read somewhere it should be kick panel gray plug pin 6 black/ light blue wire but I can't find it

r1lukasz

ok I think my problem is dome light wire is positive+ and viper side is negative , can somebody post a relay diagram to switch polarity, I found few diagrams at 12volt just not shure witch one to use , dont want to burn anything

Thisguyuknow

Now that you post this, I somewhat remember that issue.. my solution was not to wire the dome lights as I could find no logical reason why. I'd miss the feature of then turning on and off when I unlocked our locked the car. So can't help you with the correct relay.

18_F-150_XLT_Screw

iTrader: (1)

You can use just one relay

Pin 86 and 30 is 12v pos
Pin 87 goes to dome light
Pin 85 is used as neg trigger from alarm

When pin 85 and 86 both have current they energize the magnet coil creating a closed circuit across pin 30 and 87, thus sending 12v pos to the dome.

lenny53d

I would like to say thank you to "thisguyuknow" for this post. After I converted the 5704 wires to my 5706, this made my install in my 2005 F150 easy. I posted my install if anyone is interested.
Larry
https://www.f150forum.com/f4/viper-5...l-pics-256484/

GTJoe

Well this is my first post and I think it's only appropriate that I add back to a thread that I used during my installation of a viper 5806v... Wires are similar to the install above.

I wanted to activate the 'dome light supervision' (viper -200ma) upon unlock of the truck using the viper remote, and as noted above, you can use a relay to trigger the energizing of the courtesy circuit to power the dome light. But, an easier solution I found was to ties the 'dome light supervision' viper circuit to any of the door ajar wires coming from the BCM ( the same wires you will be putting a diode on). This way the viper units sends the -200ma signal to the door ajar wire (indicating to the instrument cluster (which controls the curtesy lighting circuit for a - remote keyless entry truck) that a door is open). The issue I've had with this is you will get a 'door ajar' notice in your instrument cluster after a remote unlock even if your doors are shut, but if will go away after you start the truck or the default dome light supervision duration expires - about 30 seconds... So really not a big deal. Hope this helps anyone in the future.