I'm a n00b when it comes to ICE. I want to replace my Concert unit with a Pioneer DEH-4000UB. I have a PC9 - 404 wiring harness. I've connected it all up but am getting no power to the unit. Any help woulde be appreciated!
There are 2 ways to do this, you can either tap the red wire into the yellow wire, this will give you the permanent live needed to power up your head unit.
The downside to this is, you have to manually switch off your headunit everytime you leave your car.
The other option is to take a switched live feed from your fusebox to your headunit, this will switch your headunit off everytime your key is removed from the ignition.
If you do a search, there are several discussions regarding this.
Hope this helps.
Have you connected the red plug? This feeds your rear speakers, the 2 phono plugs goes into the back of your head unit and the blue one if I remember correctly is the earth.
black is connected to a white port on he HU
I've since learnt that the rear amp is only 2x20w and my HU built in amp would be much better. How difficult is it to wire the rear speakers directly to the HU?
The blue cable on the aerial adapter is connected to nothing, is this important?
That's true, the rear amps are crap, wiring direct to the headunit is relatively easy, the only time consuming part is removing any trim to pass your speaker cables through.
It will sound much better than using the stock amp, while you're at it, why not change the rear speakers at the same time.
It shouldn't take anymore than a couple of hours to do at most.