accessing horn wire 2007 nissan sentra

Hi Icearrow6 Thanks for the picture, it helps a lot, and with Howie's directions, it went perfectly well. Thanks to both of you, I got the remote start working perfectly now. The last part of my project is to get the trunk release to work. Documentations I have read said to tap into red(+) wire, in "driver door sill", leading to the back of the car or use "Use Trunk Release Motor wire". Neither of which are very clear what these wires is driving. If they are driving the solenoid of the release actuator, will I be needing a relay to help drive it? Viper documentation shows its trunk release signal only provide 200mA, and will require a relay if it needs to drive bigger current. Any guidance you can provide is much appreciated. Regards, ttokttok

Use this diagram, standard Bosch type 5 pin automotive relay, 15 amp fuse. DC3_trunk_release.bmp Diagram's a bit messed up so here's how:- RED / white from Viper to 85. 12V+ constant, fused 15 amps to 87 and 85. Cut red trunk release wire, switch side to 87a MANDATORY otherwise blown fuses. Trunk side to 30. Diode 1N4004 across coil (86 and 85), band side to 85. MANDATORY other wise coil shutdown back EMF can fry all your aux outputs.

Hi Howie Thanks for answer and apology for late reply. Recuperating from leg operation, will tackle this once the leg feels better. Thanks again! Have a great day! Regards, ttokttok

I feel for your leg, I have bursitis from too many years on my knees in this game, syphon out and a cortisone shot every 6 months so good luck with the leg.

Hi Howie I sympathize with you, I am still nursing my leg. However, have gained enough mobility to return to my project now. Looking at your instruction on wiring the relay, I wonder if there is a mistake on step-2. Here is what you wrote:      - RED / white from Viper to 85      - 12V+ constant, fused 15 amps to 87 and 85      - cut red trunk release wire, switch side to 87a MANDATORY otherwise blown fuses      - trunk side to 30      - diode 1N4004 across coil (86 & 85), band side to 85 I wonder if in step-2 you meant to say "12V+ constant, fused 15 amps to 87 and 86" - it does not seem to make sense to me to connect 12V+ to 85, when RED / white from Viper is already connected to 85. Can you please verify this step for me before I wire them up. Thanks in advance. ttokttok

Thank you I was wrong and you are right, I was 69 in Sept. and to be honest that's one reason I've retired. Fused to 87 and 86. Diode across 85 and 6, 1N4004 band side to 86.