The wiring harness is marked. Is the marker for the blue wire missing?
Yes. The blue or blue/white wires are often remote output control?
Make/model head unit?
Yes. The blue or blue/white wires are often remote output control?
Make/model head unit?
There's a label right on top of the head unit. Additionally each wire has a marked sleeve.
If you're referring to the vehicle wiring- you need to provide year/make/model information.
If you're referring to the vehicle wiring- you need to provide year/make/model information.
The blue wire is marked as power antenna which is already connected to somewhere already don't know if i can take signal for the amp from there still.Hu is one of those unbranded ones
With a multimeter, does the blue wire have 12v regardless of the source selected tape, CD, aux...? or does it only have 12v when AM/FM are the source?
If that's a power antenna wire, it may only have voltage when on a source that needs an antenna.
You could try connecting it to the amp remote turn on to see if it has voltage no matter the source.
You could try connecting it to the amp remote turn on to see if it has voltage no matter the source.
It can sometimes make a difference. If the car is fairly new, the various 'computers' in the car can be more of a problem. Back when I was installing (in the age of dinosaurs), we always ran everything down one side.
Car is opel astra g 2000 under the rear seat i already found set of rcas and power cables ran down one side
Try it as is. If you have any sort of noise (alternator, whatever...) run another set of patch cords over the seats (not near anything noisy in the vehicle). If that eliminates the noise, run them down the other side.
If then noise remains with the cables run over the seats, you likely have a problem with the head unit or the amp.
If then noise remains with the cables run over the seats, you likely have a problem with the head unit or the amp.
Ok thanks first i need to figure out the remote power wire haha if it works on the blue wire.If not is there somewhere else to connect the remote wire to, cigarette lighter maybe?
The cigarette lighter has constant voltage in some vehicles. It may or may not work. You need a switched source.
One problem with using something other than a head unit controlled voltage source is that you sometimes get a significant pop if you switch the head unit on/off while the amp is on (as it would be any time the key was in the ign or acc positions).
If you tap off a source in the vehicle, I'd recommend using a 1 amp fuse and 16g wire. Smaller wire works but 16 is durable and not significantly more expensive than smaller wire. The fuse needs to be inserted at the point where you tap off of the voltage source.
One problem with using something other than a head unit controlled voltage source is that you sometimes get a significant pop if you switch the head unit on/off while the amp is on (as it would be any time the key was in the ign or acc positions).
If you tap off a source in the vehicle, I'd recommend using a 1 amp fuse and 16g wire. Smaller wire works but 16 is durable and not significantly more expensive than smaller wire. The fuse needs to be inserted at the point where you tap off of the voltage source.