I finally got tired of listening to static after I shut my truck (and my Sirius radio) off. I had mounted a power point jack under the big panel under my steering wheel and powered it up with the blue w/ white wire ford supplied for accessories. It worked good except it was only hot when the key was on. So when I would shut my truck off, the radio stayed on, and the Sirius shut down.

Static.

I finally got tired of that and went hunting for the delayed acc. wire so my Sirius would stay on until I opened the door. I unbolted the fuse panel and pulled it out far enough I could use my test light on the back of the connectors on the back side where the wires come in. After about 20 min. of playing with it, I finally found it. the delayed acc. wire is Blue with a black stripe. It is one of only 2 wires on the harness. the other wire is green. They are on the left side of the fuse box in the middle and they are bigger wire (maybe #14 or 12 gauge). I just used a suitcase connector to connect my power wire that goes to my underdash power point.

I did a search looking for the above info and couldn't really find anything definte before I started messing around, so I thought I'd post my results so that it might help someone else also.

 

I forgot to say that my truck is a 2004 F-250 Reg cab.

 

Great info and thanks for posting. My Sirius is set up the same way yours was and I'm getting ready to change it over like you did. This will make it easier now!

 

Excellent work Brett. I am normally not a fan of people from Kansas but you have impressed me. (Kidding about the Kansas thing) Seriously, it is people like you on this site that have made it what it is. Very helpful. I know I will use the info you provided when I install my Sirius. Thanks Brother.

The Kansas thing is due to my being a Texas fan. The whole Big 12 rivalry thing.

 

When I had my XM installed I don't know where he powered it from but it stays on until I open the door. Maybe he powered it from the radio power lead.

 

I used the radio power to run a relay which controls the accessory power outlet. My Sirius tuner gets pretty warm so it may draw enough juice to blow the radio fuse if it was tied in direct. Maybe not.

 

A little additional information since the subject was brought up:

The light blue/black wire is the main power lead for the power windows, moonroof, and rear slider. It is fed by fuse 601 in the central junction box and is fused with a 30 amp fuse.

There are also two pink wires coming off of the central junction box that are both fed by fuse 42, which is rated at 15 amps. One of these wires is the power circuit for the power door lock switch, and the other runs to the radio and serves as the "turn on" signal. The radio uses very little current on this circuit as it is mainly powered by fuse 11. The pink circuit can be used for light-load accessories and as an amp turn-on lead.

 

When I hooked up my XM receiver, I took out the radio and found the delayed power wire feeding it. I took one of those cigaretter lighter splitters, cut one of the sockets off and tapped it into that power wire and a ground. Then I could just plug my XM lighter power cord into it. It's all stuffed up behind the radio out of the way, just the power wire and antenna wire coming out of the access panel under the steering wheel.

 

Anybody know what wire to use in a 2007 with the 6.0L?

I need a wire to hook up power for my two headrest monitors. I tried hooking them up to the amp turn on wire from my head unit but eveidently running them and the amp pulls too much current and the head unit shuts off power to that circuit. So now I'd like to find this wire so they will stay on until I open the door.

 

The wire colors are the same and the circuits are laid out similarly on the 2007. You could use the LB/BK for the power windows, it uses a 30 amp circuit breaker that year. If you trip that, the breaker resets after it cools.

Or, you could just wire in a relay of course, and use the pink audio wire as the control.

 

FireMe,

My truck doesn't have all that fancy stuff like a moon roof or power sliding rear window. It does however have power windows and locks. is the end of the wire that goes to the fancy stuff taped off somewhere, or does it just end in a harness plug somewhere. Just kinda curious.


Beerstalker,
Are you able to unbolt your fuse panel? I'm not sure about the 07's but If it was like mine all it takes is a 10mm (I think) socket and 4 bolts and you can pull that sucker down and see the back of all the harnesses coming into it. Then use a test light and play around and maybe you can find something. First I'd look for the blue w/ black wire over on the left side of the back of the panel. Its on a 30 amp fuse - surely thats big enough for your monitors?