ground avic-n3 in 626?

Just installed an N3 in my 95 Mazda 626 and it works great. However, when started (and still in park) I get the parking brake not properly connected message. I didn't do the bypass, but I tried to ground the e-brake green wire so I wouldn't have to hunt for the real one.

I grounded the e-brake sensor at the same grounding point of the headunit. If the parking brake wire is not actually grounded, that means my head unit is not grounded. If this is true, is this a dangerous situation? Would the head unit even be able to turn on if it wasn't grounded?

sparkie,

That's a good thought about the unit needing to see a voltage change in the parking brake circuit, however, this is immediately after startup and while still parked. Although anal, I doubt the Pioneer expects someone to start the car, take off the brake, and reapply it before moving.

Alpine makes you do this plus makes you apply the foot brake to boot !