hard wire problem

I have hard wired my i955 into my fuse box using a add a circuit, I have used the radio, sunroof and other circuits but none will turn the detector off when the key is in the off position and removed from the ignition yet the device the fuse is working turns off. i.e Radio. This is being done on a 2004 Volvo. Is there a relay of some sort and is power always at the fuse box? Not a big problems as I just need to remember to turn off the detector each time. No matter what it's a much cleaner install. Detector is mounter just to the left of the rear view just under the tint.

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Originally Posted by lowertc

I have hard wired my i955 into my fuse box using a add a circuit, I have used the radio, sunroof and other circuits but none will turn the detector off when the key is in the off position and removed from the ignition yet the device the fuse is working turns off. i.e Radio. This is being done on a 2004 Volvo. Is there a relay of some sort and is power always at the fuse box? Not a big problems as I just need to remember to turn off the detector each time. No matter what it's a much cleaner install. Detector is mounter just to the left of the rear view just under the tint.

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Sometimes a car leaves access. power on for 10 mins or so when you pull the key. Read the owners manual or ask your dealer about this and your car. Or turn off your car pull the key and leave the radio on and see how long it stays on.

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Originally Posted by lowertc

I have hard wired my i955 into my fuse box using a add a circuit, I have used the radio, sunroof and other circuits but none will turn the detector off when the key is in the off position and removed from the ignition yet the device the fuse is working turns off. i.e Radio. This is being done on a 2004 Volvo. Is there a relay of some sort and is power always at the fuse box? Not a big problems as I just need to remember to turn off the detector each time. No matter what it's a much cleaner install. Detector is mounter just to the left of the rear view just under the tint.

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If the circuit does not shut down after a specific time, simply install a switch on the power lead and place the switch where ever you wish. Problem solved. Then you can power up the detector after the vehicle starts to avoid any power spikes. Not a bad safety precaution.

I had the same problem on my LI install. I taped into the exhaust solenid fuse thinking it would not be powered when the car was off, wrong. I had to try several fuses before I found one that was not powered when the car was off. There has to be a fused circuit that is not powered, just keep looking

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Originally Posted by lowertc

I have hard wired my i955 into my fuse box using a add a circuit, I have used the radio, sunroof and other circuits but none will turn the detector off when the key is in the off position and removed from the ignition yet the device the fuse is working turns off. i.e Radio. This is being done on a 2004 Volvo. Is there a relay of some sort and is power always at the fuse box? Not a big problems as I just need to remember to turn off the detector each time. No matter what it's a much cleaner install. Detector is mounter just to the left of the rear view just under the tint.

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Rotate the add-a-circuit 180 degrees. That will fix it! Then the RD will turn off along with whatever original device such as the radio turns off when you turn off the ignition.

Radio head units typically have two power wires going into them. 12 volt constant, and 12 volt trigger. The wire you have tapped is probably the 12 volt constant. The purpose of that wire is to power the radio when it is on and to keep the clock settings, etc. The purpose of the 12 volt trigger is simply to tell the radio to power on when the ignition switch is in the on or acc position.

12 volt constant wire always has 12 volts going to it. (this wire is able to carry about 10 amps)

12 volt trigger wire only has 12 volts when ignition is on or acc.(this wire is able to carry much less than 10 amps, probably around 1 or 2, it is not designed to power anything)

I guess you could use the 12 volt trigger, but you might blow the fuse, since it is not designed to have a lot of current pulled from it.

I guess the right way to do this is to set up a relay.

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Originally Posted by MEM-TEK

Rotate the add-a-circuit 180 degrees. That will fix it! Then the RD will turn off along with whatever original device such as the radio turns off when you turn off the ignition.

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I don't see how this will affect anything. By flipping it over you would be changing it from parallel to a series circuit, or vice versa if it was backwards to begin with. The fuse will still have power on it if the buss is powered with the switch in the off position.

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Originally Posted by MEM-TEK

Rotate the add-a-circuit 180 degrees. That will fix it! Then the RD will turn off along with whatever original device such as the radio turns off when you turn off the ignition.

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Sry somehow I double posted.

Take my advice in post 1, turn off the key and wait, see if it goes off. Also, as another poster said the radio does run off 2 power wires, one constant and one access. power. Check to see if there is another radio fuse location.

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Originally Posted by category4

I don't see how this will affect anything. By flipping it over you would be changing it from parallel to a series circuit, or vice versa if it was backwards to begin with. The fuse will still have power on it if the buss is powered with the switch in the off position.

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I was assuming that the add-a-fuse was installed in the car's fuse box and plugged into a fuse terminal location for a component which is known to power off when the ignition key is turned off.

:)

Thanks for all the responses, When I have some time I will give a couple a try. I know there is also another fuse box in the car, Will also look there for the answer. Worst case is that i just need to turn off the device each time I exit the car. Can Volvo ever make things easy? I have a XC90 as well and ordered another kit for that. Will see if it has the same issues.

Anyhow it's a much cleaner install and have taken the advice of posters on this site and mounted it just to the left of the RV mirror in the tint, Very hard to see for outside the car and should stay cooler in the summer.

Taking a ride from Ct to Maryland this weekend any thing special i need to be aware of? can I run city low or NOX the whole way

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Originally Posted by lowertc

Thanks for all the responses, When I have some time I will give a couple a try. I know there is also another fuse box in the car, Will also look there for the answer. Worst case is that i just need to turn off the device each time I exit the car. Can Volvo ever make things easy? I have a XC90 as well and ordered another kit for that. Will see if it has the same issues.

Anyhow it's a much cleaner install and have taken the advice of posters on this site and mounted it just to the left of the RV mirror in the tint, Very hard to see for outside the car and should stay cooler in the summer.

Taking a ride from Ct to Maryland this weekend any thing special i need to be aware of? can I run city low or NOX the whole way

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Need to leave X on for NJ.

would low X be ok? or would you recommend highway or autoscan

cheers!

Personally, I would install a rocker switch and turn on and off manually the radar detector, atleast that way in case there's a chance of a voltage spike when you turn the car on, it wont damage the detector..

I currently do turn on and off at the device, I can keep it as is.

Thanks again all.

once again is Low x mode ok on the NJ TPKE?

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Originally Posted by lowertc

I currently do turn on and off at the device, I can keep it as is.

Thanks again all.

once again is Low x mode ok on the NJ TPKE?

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No, Low X is not a good idea for New Jersey. You could easily miss an X band I/O strike up ahead if you are doing any filtering of the X band.