I don't have a D2 yet, but I'm considering buying one. I've read a lot here about the bypass, and every thing I read says that you must ground the parking brake, which I assum will cause my brake light to be on all the time. Being that the brake light is also the indicator for a problem with your brake system, I feel that this is a dangerous trade off.
None of the tutorials address the matter of why you must ground the brake. I can't imagine that nissan put any special wires in their car just for this head unit, so isn't there another wire that can be grounded to the same effect? Something going into the head unit perhaps?
How does the head unit know whether the brake is on or not? How would it know on a car built in 1995 long before this head unit existed? I'm sure the radio isn't hooked up to the ECM, or any other item that would send it information about the status of the brake, so I can only assume that it knows because the brake wire is somehow connected to the unit. If that is the case, why not just disconnect it and ground the wire coming out of the unit for the same effect?
I'm really confused about this, and it IS the one factor that is preventing me from buying this unit right now. Can anyone help?
Thanks.