Take that fuse out, wrap the remote wire around it, and connect it back where it was. If you go the former route, then you should start out by checking your manual to see what gauge power and ground cables your amp calls for. This will go to 12v when the unit is operated. The resistance in the remote wire circuit within the amp and the 12vdc voltage from the battery are all that effect the current draw. Make sure you always turn off your amp when you leave your car, it will overheat and drain your battery. Applying power to this terminal will damage the starter …. Connect the ground wire to the usually green screw.
When the car's head unit is off, the power to the amp is off. If the radio is good, it could be a bad speaker. So the amplifier doesn't stay on 24 hours a day you need a way to turn it on and off remotely. This can be used to generate your amp control signal. This will prevent it from slipping out during the bumps and vibrations of day-to-day driving. Common values are 2, 4, or 8 ohms, so do your homework beforehand.
Make sure that the power wire and aux cable are on opposite sides of the vehicle for less distortion and interference. Some manufacturers call it a power antenna wire. Does the amp have a remote wire and the head unit not? If they are, then hook up an external speaker to the radio's output for that side to see if it is the radio at fault. Run the power wire to your amp. If neither unit has a remote line then you can still use a relay to control power to the amp, but you may need to be a little sneaky.
Tape it off and push it to the back of the out … let box. You can put it through an empty rubber grommet in a factory hole. What aftermarket radio doesn't have a remote turn on output these days? This is how I've got the amps in my cars hooked up I own 5 vehicles which all have systems, 3 of them have dual amps. The fuse amperage should match the gauge size. Companies such as and all make these type of interfaces. If you can get to the starter, you hook up one side of the switch to the terminal that goes to the battery and the other side of the switch to the small terminal marked with and S. Trying to build a box one last time, and use a bit of a different set up.
It should be noted that some head units have both a remote turn on wire and a power antenna wire. I am confused what do you mean by ignition switch? Any help is greatly appreciated. If you wire a reed relay with the coil in series with the switched feed, then the contact of the reed relay will switch when the unit demands power. Now for the Remote blue wire. There are also units that will sense the voltage on the head unit's speaker wires and then send a +12 volt signal to the remote wire. . You should have two feeds to the head unit.
Hence the term remote turn on wire. I know i can use a wire between the power in terminal and remote hook-up to get the amp to work, but i'm afraid that will run down my battery. It covers many topics including in depth car audio amplifier installation. Example : If you have a Chevy and a Sony stereo go to them and tell them you need a Chevy to Sony wiring harness, they will ask you the year of the vehicle and then go pick it off the shelf, these are usually by the install department behind the counter. In the wiring harness for your headunit, there should be a blue or maybe yellow wire that is your remote wire. Before working on this circuit be sure that the power is turned off.
I think his best bet would be to wire a simple relay to the ignition wire under the dash, or some fuse in the fuse box that only has power when the car is on just take your meter and start probing. One way I have made an amp control signal is to fit a reed relay in line with the feed to the head unit. Power cables and speaker wires are typically available in bulk, although you can usually buy power cables that are cut to the specific lengths that you need. If you have a stock stereo and you have the remote wire there you want to in twine the remote wire with the power wire before inserting in the power slot for amp. What you could do instead is locate your fuse box and find a fuse that turns on when you turn the key in your car. Get your capacitor as close to the amp as possible, and use the same ground as you did for the amp. This is called the remote wire.
Otherwise you rick blowing the converter, possibly the amp usually a mosfet , and then possibly the subs, though not likely. A toggle switch is an electrical component that controls the flow of electricity through a circuit by means of a mechanical lever that is manually controlled. If he uses the power antenna lead then his amp will only turn on when he's listening to the radio. Take the 2 hot wires and connect them to the two terminal screws of the 240 volt rated outlet. The first three connections are necessary in order to provide power to your new. The remote wire tells the amp to turn on.
Have your power wire taunt and find out where your cap. Or do I need to plug into something keyed by the ignition cig lighter, etc. Does the head unit have a remote connection and the amp not? The remote wire goes to the amp. Since this is a 240 volt install you will not be using the white wire. As long as it is a switched power source so that the amp shuts-off with the ignition.