Yukon under dash wiring?
Question:
Is there some sort of problem, buying a plug for the cigarette lighter and hooking it up to the radar detector and plugging it in that way?
– Hide quoted text — Show quoted text -> I have a 2001 Yukon and I am trying to find a wire under the dash that has > switched 12v for connecting a radar detector. Can anyone help me find a good > wire without having to poke and probe around under there? > TIA > Karl
Response:
If it’s like my GMC truck, the lighter outlet is always on not switched with the ignition as you’d want for a radar detector. Jack
– Hide quoted text — Show quoted text -> Is there some sort of problem, buying a plug for the cigarette lighter and > hooking it up to the radar detector and plugging it in that way? > I have a 2001 Yukon and I am trying to find a wire under the dash that has > switched 12v for connecting a radar detector. Can anyone help me find a > good > wire without having to poke and probe around under there? > TIA > Karl
Response:
Some of us are purists! – Hide quoted text — Show quoted text – > Is there some sort of problem, buying a plug for the cigarette lighter and > hooking it up to the radar detector and plugging it in that way? > I have a 2001 Yukon and I am trying to find a wire under the dash that has > switched 12v for connecting a radar detector. Can anyone help me find a > good > wire without having to poke and probe around under there? > TIA > Karl
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Response:
Hey Karl, I’m kinda surprised, because I also have a 2001 Yukon (XL)… There definitely is something in the engine compartment with a black plastic cover that’s marked something like ‘Electrican Distribution Point’ or something like that & I haven’t popped that cover yet to look at it. But the normal 3/5/10/20/etc. amp fuse panel for headlights, stereo, etc. for my ‘01 XL is in the passenger compartment, accessable from the driver’s side, side of the dashboard (visible when the driver’s door is open). It’s also marked as ‘Fuse Panel’ or something of the like. I suggest you buy a 12 V voltage probe from any automotive supply place for about $5. Attach the alligator clip end to any decent ground source under the dash, and then probe the fuse panels, gently sticking the sharp-tipped probe in between the fuse & the metallic fuse receptacle contact with the ignition on. If the lamp lights, you have 12V. Turn the ignition off, and if the lamp goes off, you’ve found a suitable power source to use those little power terminal adaptor things. The obvious fuse position to try would be the one for the stereo. Tim – Hide quoted text — Show quoted text – > Unfortunately, my fuse panel is in the engine compartment which is very > convenient for replacing fuses but not for wiring additional components into > it. > Karl > Doing a little poking & probing under there is easy, unless you’re a > fatso. > But for a low amperage unit like a RADAR detector, you can tap into > the fuse panelling for the positive, and then any decent ground source. > Read the fuse panel schematic to find one that’s only hot when the > ignition is on, for example, the stereo. Any decent automotive supply > store will have the small electrical terminals designed to shim > in-between the (mini) fuses & the fuse contacts on the car, for your > type of application. > Tim > > I have a 2001 Yukon and I am trying to find a wire under the dash that > has > > switched 12v for connecting a radar detector. Can anyone help me find a > good > > wire without having to poke and probe around under there? > > TIA > > Karl > —
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Response:
Tim, I’ll check it out when I get my truck back from the shop 
While probing under the dash this afternoon with a volt/amp/ohms meter I tried an orange wire that was always hot, then a white one which also was always hot. The third wire I tried was pink. I stuck the probe into it and the "lights on" warning chime started going off, so I pulled the probe out. The red battery warning light was on in the message center on the dash. I tried to start the truck and it fired and immediately died. I tried several more times with the same results. I figured it was some kind of computer malfunction so I tried a bunch of stuff including disconnecting the battery with no luck. I finally called On-Star and had the truck flat-bedded to the dealer. I’ll find out tomorrow what the problem is, hopefully they just have to reset a fault code in the computer or something like that. The black box in the engine compartment in my Denali is definitely a fuse box. I’ve opened it several times and there is a full complement of fuses in there. I’ll look and see if there is another one inside the driver’s door where you suggested. Meanwhile, I’m gonna call the guys who installed my Nav system and see if they can point me to a fail-safe switched wire under the dash somewhere. If that doesn’t work I might be able to use Brian’s suggestion and run a wire from the fuse box in the engine compartment to under the dash. There’s an existing conduit through the firewall and it looks like there might be room to squeeze another wire through it. Karl
– Hide quoted text — Show quoted text -> Hey Karl, > I’m kinda surprised, because I also have a 2001 Yukon (XL)… There > definitely is something in the engine compartment with a black plastic > cover that’s marked something like ‘Electrican Distribution Point’ or > something like that & I haven’t popped that cover yet to look at it. > But the normal 3/5/10/20/etc. amp fuse panel for headlights, stereo, > etc. for my ‘01 XL is in the passenger compartment, accessable from the > driver’s side, side of the dashboard (visible when the driver’s door is > open). It’s also marked as ‘Fuse Panel’ or something of the like. > I suggest you buy a 12 V voltage probe from any automotive supply > place for about $5. Attach the alligator clip end to any decent ground > source under the dash, and then probe the fuse panels, gently sticking > the sharp-tipped probe in between the fuse & the metallic fuse > receptacle contact with the ignition on. If the lamp lights, you have > 12V. Turn the ignition off, and if the lamp goes off, you’ve found a > suitable power source to use those little power terminal adaptor > things. The obvious fuse position to try would be the one for the > stereo. > Tim > Unfortunately, my fuse panel is in the engine compartment which is very > convenient for replacing fuses but not for wiring additional components into > it. > Karl > > Doing a little poking & probing under there is easy, unless you’re a > > fatso. > > But for a low amperage unit like a RADAR detector, you can tap into > > the fuse panelling for the positive, and then any decent ground source. > > Read the fuse panel schematic to find one that’s only hot when the > > ignition is on, for example, the stereo. Any decent automotive supply > > store will have the small electrical terminals designed to shim > > in-between the (mini) fuses & the fuse contacts on the car, for your > > type of application. > > Tim > > > I have a 2001 Yukon and I am trying to find a wire under the dash that > has > > > switched 12v for connecting a radar detector. Can anyone help me find a > good > > > wire without having to poke and probe around under there? > > > TIA > > > Karl > > — > —
Response:
Unfortunately, my fuse panel is in the engine compartment which is very convenient for replacing fuses but not for wiring additional components into it. Karl
– Hide quoted text — Show quoted text -> Doing a little poking & probing under there is easy, unless you’re a > fatso. > But for a low amperage unit like a RADAR detector, you can tap into > the fuse panelling for the positive, and then any decent ground source. > Read the fuse panel schematic to find one that’s only hot when the > ignition is on, for example, the stereo. Any decent automotive supply > store will have the small electrical terminals designed to shim > in-between the (mini) fuses & the fuse contacts on the car, for your > type of application. > Tim > I have a 2001 Yukon and I am trying to find a wire under the dash that has > switched 12v for connecting a radar detector. Can anyone help me find a good > wire without having to poke and probe around under there? > TIA > Karl > —
Response:
If you plan on adding things in the future, wire up a new panel under the dash. It makes things nicer when you wire up a citizen’s band radio, power for the switches of auxilary lights, et cetera. If you do this and GM wasn’t nice enough to leave you a spot to run a wire through, don’t forget to use a rubber grommet when you drill through the firewall. -Brian
– Hide quoted text — Show quoted text -> Unfortunately, my fuse panel is in the engine compartment which is very > convenient for replacing fuses but not for wiring additional components into > it. > Karl > Doing a little poking & probing under there is easy, unless you’re a > fatso. > But for a low amperage unit like a RADAR detector, you can tap into > the fuse panelling for the positive, and then any decent ground source. > Read the fuse panel schematic to find one that’s only hot when the > ignition is on, for example, the stereo. Any decent automotive supply > store will have the small electrical terminals designed to shim > in-between the (mini) fuses & the fuse contacts on the car, for your > type of application. > Tim > > I have a 2001 Yukon and I am trying to find a wire under the dash that > has > > switched 12v for connecting a radar detector. Can anyone help me find a > good > > wire without having to poke and probe around under there? > > TIA > > Karl > —
Response:
I have a 2001 Yukon and I am trying to find a wire under the dash that has switched 12v for connecting a radar detector. Can anyone help me find a good wire without having to poke and probe around under there? TIA Karl
Response:
Why not plug the wire in under a fuse (in the block) of a known switched source such as the radio?
– Hide quoted text — Show quoted text -> I have a 2001 Yukon and I am trying to find a wire under the dash that has > switched 12v for connecting a radar detector. Can anyone help me find a good > wire without having to poke and probe around under there? > TIA > Karl
Response:
Doing a little poking & probing under there is easy, unless you’re a fatso. But for a low amperage unit like a RADAR detector, you can tap into the fuse panelling for the positive, and then any decent ground source. Read the fuse panel schematic to find one that’s only hot when the ignition is on, for example, the stereo. Any decent automotive supply store will have the small electrical terminals designed to shim in-between the (mini) fuses & the fuse contacts on the car, for your type of application. Tim > I have a 2001 Yukon and I am trying to find a wire under the dash that has > switched 12v for connecting a radar detector. Can anyone help me find a good > wire without having to poke and probe around under there? > TIA > Karl
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