The problem was related to 1996 through 1998 Civics. On these cars the
keyless remote receiver (and security system, if so equipped) was
integrated into the head unit. The dome light wire goes through the head
unit as well since it is connected to the security system.


Swerv wrote:
>
> The car is a 1996 Acura Integra. I wanted to replace the factory head
> unit. I heard somewhere that doing this would kill my keyless entry.
> I accepted this fact and went ahead with the head unit removal. At
> this moment, the factory head unit is out of the car and the new one
> has not yet been installed. The keyless entry still works!
>
> This seems to contradict everything I have read. Does anyone know how
> it is still working?