trunk pin for 94 mustang

The Blue Hood/Trunk pin wire has nothing to do with the trunk release wire.    Audiovox has the following info for the security wiring.

	Battery		YELLOW		(+)		IGNITION SWITCH HARNESS
	Ignition 1		TAN/WHITE		(+)		IGNITION SWITCH HARNESS
	Starter 1		WHITE/ PINK		(+)		IGNITION SWITCH HARNESS
	All Door Trigger		BLACK/ BLUE		(+)		OR GRY BEHIND GLOVEBOX "GRY PLUG"
	Trunk Trigger		BLACK/ PINK		(-)		AT TRUNK SWITCH
	Hood Trigger		N/A
	Alarm Disarm		N/A
	Parking Lights		BROWN		(+)		DRIVER'S KICK PANEL

They have the following for the trunk release wire.

Trnk Release

VIOLET / YELLOW

(+)

TRUNK RELEASE SWITCH ON DASH

Chances are your alarm system has a negative output for trunk release, you will have to use a relay to convert the negative out of the alarm to a positive pulse that will release the trunk.

Convert a Negative Output to a Positive Output

If you have a switch or an alarm or keyless entry that has a negative output that you wish to use to switch a device that requires 12V+ such as a horn, dome light, parking lights, head lights, hatch release, etc., wire a relay as shown below to convert the negative output (trigger) to a positive output.

The aux output of your alarm connects to the wire labeled trigger.   The wire labeled +12 V output connects to the Violet / YELLOW wire on the trunk release button.

The blue wire of the alarm can be connected to the BLACK/ Pink wire at the trunk switch.  The wire should be the same color on the trunk light also.

Makes your alarm go off if the trunk is opened.