No power going on to the car amps. Harness of stereo is not sending signal to power up amp.?

Question

Car AMP not turning on after putting in touch screen DVD player. Is it remote or antenna wiring issue? No power going on to the amps. Harness of stereo is not sending signal to power up amp.
The stereo DVD player is mosfet and is Chinese made I think. The stereo single standard DIN nicely fits into the car harness. Everything works including radio and DVD but it does not turn my amps on and hence no rear speaker sound coming out. My old unit nicely did this. I think this is to do with the wires of the remote but I am not sure. I get some sound on the front speakers. I think the stereo is harnessed to turn the Antenna on but don’t know what or which wires. I don’t need the Antenna just need to bypass this and get the amps to turn on. The unit is 12 v dc. I am using 4 channel amps.

Can someone please tell me how I do this can I swap the antenna blue harness wires around or is there any wires I can swap or change to get the amps to turn on. please please help im going mad trying to work this out

Answer 1

The antenna wire will work just fine for a remote turn on, don't listen to george. I always have used the antenna wire in all setups I have hooked up for myself, friends, and family. This wire is generally blue, and all you have to do is splice a wire into that, and run that wire to the amp turn on lead, on your amp.



Also, double check your ground on your amp, if it is not ground properly to the car body, the amp won't come on. Make sure you scratched any paint away where the neg wire connects to the car body, and make sure it's on metal. Double check your fuse(s) on your power wire, generally in the engine bay compartment. That's an in-line fuse connected to the [generally] red power wire, which should be 0/1 to 6/1 gauge in size, depending how much power your running.



Double check with a multimeter...put each lead of a multimeter on the amp terminals once it is hooked up, and if your reading ~12v, then the problem is indeed your amp turn on.

If you can't or don't want to hook the turn on to the antenna wire behind your radio, you can hook it up to a fuse, or you could run a separate wire the length of your car to the battery, or some power wire, and but an in-line switch so you can control when your amp is on or off. [just make sure you turn it off when your car is off].



Hope this helped.

Answer 2

The antenna wire is for a power antenna, the kind that comes up when you turn on the radio fm or am stations, other wise it will not receive any power if you do not have one. The red wire (12 volt) if that is not receiveing any power from your harness the easiest way to do this is to run a seperate remote wire from your fuse box to the stereo and wire in the remote wire for the amp. There are adaptors available to wire it into the fuse, it is call a fuse tap, which is the safest way of doing this. Other wise just wrap the end of the wire around a fuse and plug the fuse back in with the wire wraped around it. I had to do that with a Chevy that I owned.

Answer 3

just tap into the cigarette lighter wire and connect it to the amp remote wire

Answer 4

well the other dude is wrong george is right it only comes on when the radio is on and that other guy needs to learn his **** befor he trys to tell other peole