I just purchased these lcd screens that have power wire that it says to connect to the battery 12V. But when the key is not in the ignition, it still gets power to it. I'm afraid that one day, someone's gonna forget to turn off the screen and it's gonna drain the battery. So, does anyone know how to wire so that I can get power while the key is in the igntion only? TIA.
help: how to add power that turns off with ignition
- Thread starter wantacruiser
- Start date
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you need to get a wiring schematic for the radio and find the lead for the remote turn on. the radio has a "hot" lead for power, as well as a remote power lead that tells the radio that your vehicle is "on" so that it can power up.
looks like third wire on the left (red on the aftermarket harness being plugged in) that is with the clip that locks the harness into the radio on the top as you are looking at it. Not sure what color on the toy harness from this picture.
hope that helps. I plan to post that whole series of pics of an aftermarket radio install, with some help from someone here on the list.
hope that helps. I plan to post that whole series of pics of an aftermarket radio install, with some help from someone here on the list.
good point e999, (catchy name by the way)
might need to switch it via a relay if amp draw is too high. Wherever you get power, just make sure it is a fused source.
might need to switch it via a relay if amp draw is too high. Wherever you get power, just make sure it is a fused source.
- Thread starter
- #6
Ideally, I would like to splice in somewhere in the dash. So the wire for the stereo that is for ACC provides 12V power?
- Thread starter
- #8
well, right now I have it spliced into the power that goes to the radio. But the problem with that is that the power is constant. So when I turn off the car, the LCD screen stays on. I want it to turn off when I turn off the car as well.
There is an ignition wire and a constant wire.
The ignition wire will stay on until you open the drivers door in your cruiser though.
A diode protected test light or a multimeter would safely test those wires I would not do anything else without those of an exact wire color from a service manual, etc.....
The ignition wire will stay on until you open the drivers door in your cruiser though.
A diode protected test light or a multimeter would safely test those wires I would not do anything else without those of an exact wire color from a service manual, etc.....
maybe power doesn't stay on until the door open, maybe that's my 80, maybe I should drive my 100 more often.
Anyway there is a "switched" wire up there, I guarantee it.
Anyway there is a "switched" wire up there, I guarantee it.
