Need constant 12V in rooflight Peugeot 307

Hi,

I need constant 12V in the space above the rooflight for a tweak.
I can measure only 12V if contact is on.

grey=control signal center rooflight (low=on,off,on etc.)
purple=+ contact
green\yellow=ground
blue=+ center rooflight

the two sidelamps have each also a black and red connection (don't know why,
because they only need + contact and ground)
(cant' measure anything on these wires)

Is here somewhere a constant12V available? (I need 500mA)

If not, what color wire can I take in the fusebox?

 

Already done.


Blue (1,5mm²) on square connector in fusebox is constant +12V

Purpose of black en red cables still unknown..

 

I'm intrigued, what you doin'? Going into the taxi business, illuminated
Santa (too late) police light on the roof,?
DaveK.

 

A blue flasher (handy in trafficjams)

No, I've mounted my gps mouse between the mirror and the roof.
It's now permanent on 12V.
When I disconnect it, it takes many minutes before the satellites are
tracked again.
Don't know why it's taking so long but this is working great.
I fitted a connector in the mouse for my pocketpc with TomTom3.
My pocketpc is also powered by the mouse.
It's now quick plug and play.