Which wire for light bar relay

[Falcos1062]

I'm installing an LED light bar and can't find a suitable power source for the relay coil

I have all the parts I need and enough know-how otherwise I would buy a plug and play harness

The high beam power in this car is sent straight from the stalk switch to the lights (no high beam relay).

I would use this wire as a power source for the light bar relay but it has 12v when the park lights are on so it's a no-go

Why would this be? I can't find any wires that only have power with high beams on.

Is there some fancy ground switching for this to be possible? Otherwise the high beams would be on with the park lights.

 

[Lucien Nunes]

Yes, it might be switched on the ground side, what vehicle is it? Can you connect the relay coil across the two wires of the high-beam lamp?