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If it's a DVD made for cars it should be able to attach to most any of the fuses. My suggestion would be to run the power splice one side of the (or add an extra piece so as not to have to splice) wire into the power cord from the battery side of the wire run it into any fuse on the left side, bottom which ever side it is your looking at on the other put the other side of the wire that way when you turn the ignition off the radio goes off so does the DVD. If it.s a 12volt DVD you need a 12 volt used fuse so anything on the car that runs only when the ignition is on and has to have 12volts to run it will do the same.
Your best bet with any radio install is to wire both the positive and negative leads directly to the battery. While it might be convenient to use an existing, unused +12V feed, the interference any stray RF power can cause to existing vehicle systems is very unpredictable.
Best bet is to trace across the front of the headliner and go down the passenger side "A" post. From there you should be able to make an easy hole for the power leads adjacent to the radio antenna wire. This is the wire that comes out of the firewall and loops directly into the passenger's side front fender.
Also, be cautious with your mounting and drilling, as some discos have an ultrasonic sensor for the alarm system in the center roof area.
To run any wire through the firewall, find a spot that is both reachable and unobstructed on both sides of the wall. I generally use a very short bit so after penetrating, it does not accidentally plunge into other wiring or components, or I use a collar over the bit (a small piece of tubing, leaving only 1/4" of bit exposed) I sometimes also "cheat" by poking a hole in the rubber boot where the steering column goes through. Whenever passing a wire through sheet metal you must install a grommet. (if none are available, you can make one by using a piece of rubber tubing or the cut off end of an old tire valve.) When tapping power from the battery, you will need to use a relay and switch attached to the "accessory on" side of the ignition switch, to prevent whatever you are installing from remaining on after the vehicle has been turned off. Use fuses in all new power sources as well to protect the vehicle and your new install from damage. In creating a new circuit, you have the opportunity to use shielded wire, which will prevent stray electrical "noise" in your set" not a bad idea to do that. good luck
Red is power to from ignition to cd deck Yellow is direct power from battery to cd deck to hold the memory. Black is ground Blue is only needed if you are hooking up an amplifier. I always suggest buying a wire harness quick connect system for $5, then you won't have to cut origional car wiring. If by chance you are taking the original wire route, then go to installer.com to find which wires on the car are for what.
Here are the wires colors of the harness and what they do.
2001 Pontiac Grand Am Car Audio Wiring Diagram
Car Radio Battery Constant 12v+ Wire: Orange Car Radio Accessory Switched 12v+ Wire: The radio harness does not provide a switched power source. Run a wire to the fusebox for switched power. Car Radio Ground Wire: Black/White Car Radio Illumination Wire: Gray Car Stereo Dimmer Wire: Brown Car Stereo Antenna Trigger Wire: N/A Car Stereo Amp Trigger Wire: Pink Car Stereo Amplifier Location: Mounted behind trim in the left side of the trunk. Car Audio Front Speakers Size: N/A Car Audio Front Speakers Location: N/A Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Car Audio Rear Speakers Size: N/A Car Audio Rear Speakers Location: N/A Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue
Check the radio fuse? Box is drivers side end of dash(drivers door open)or pass side end of dash(passenger door open)
police models have a connection for the speakers (passenger floorboard under floor mat) to connect the speakers to the police radios.
If they had the speakers connected to their radios,they may have unhooked them and not connected them back to the radio.
The wires are brown,grey,blue and light blue.All into a blue connector.
As long as you did not have to go into the dash to splice those wires, I would say that you have either a Tempreture door that is Broken, or the actuator that controls the passenger side temp. door is bad. Most likely cause will be the actuator, because they have a very high failure rate. The actuator is located is located on the very top of the a/c-heater box behind the radio and a/c control head. It will be rather hard to change because every thing fits so tight. But if you remove the radio and the A/c control head you should be able to find it. Let me know if you need further assistance.