i have a black, red, and yellow wires in my trunk for a stereo system.i hear about this remote wire being blue (i have a sub/amp that needs a remote wire, ground, and battery) but i dont know which is which and where to put what.please help
ok hopefully you have a test light. take your test light and put in into a wire under your dash and see if the light comes on. if it does not turn your truck till it's in the run possition and see if the light come on. if it does tap into that wire for the amp turn on. remember you want no power when the truck is off and power when it's on or your battery will go dead when the truck sits! the red is battery the yellow is a key on power wire(you can use that one for the amp turn on if you wanted) and the black is ground.
well your battery wire should be at least a 8 guage wire same with the ground. the remote wire should be 18-16gauge
the red one should be the battery. look under the hood first to make sure. the other person that had the car first might have wired wrong. but red is the battery. black and or brown is the ground. blue is the remote wire. red-battery black-ground blue-remote 4 year in car audio.
Well, you have 2 options. I used this first method when I installed subs in my cousins car because there was no remote turn on wire on his car. In this case you can run wire directly from the battery to a toggle switch that you can mount on your dash, then run the wire from the toggle to your amp. So the amp only turns on when you slip the switch.(Usually, even if there is a remote turn on I run that to a toggle and then to the amp, so then you can turn your amp on and off whenever you want not just when ever the radio is off or on. Your second option is to use a circuit tester to find a wire that has power when the radio is off has no power but it has power when the radio is on, then you can splice your remote turn on into that.
The fact is, amp power wiring is available in all sorts of different colors, and people installing amps can use any color they like for any function. In general, don't depend on color to sort out wire functions. To find the battery wire, go look at the battery. The other end of the battery wire should be connected there. The the other end of the ground wire should be fastened down to vehicle metal, possibly under the rear seat or in the trunk area. The remote wire is typically much thinner than the battery or ground wire, and it's usually connected at the back of the head unit. You can use a volt-meter to determine wire function. The battery wire should have voltage at all times, and the remote wire will have voltage when the radio is on. The ground wire should never show voltage.
