I can't change bulb wiring so I used P-channel MOSFET to PWM bulbs. To save the space I used gate driver and in order to save battery life all ICs are powered from ignition (interruptible 12V). MOSFETs' source is powered from separated fused 12V line.
The problem is MOSFET is fully on when the driver is powered off. Vgs is -2.41V. Should I unsolder the driver - MOSFET is off.
When the driver is powered - everything works as expected Can't get what am I doing wrong here.