It bolts in and needs to be wired. It is used when a car has the aftermarket Porsche reflector added so that the trunk can be opened woth out drilling a hole in the reflector. I
do not recommend adding the reflector but if someone already has one installed then this is a good back up solenoid if one fails. With the addition of the reflector the owners also need to add a cable release in case their solenoid ever fails so that the can easily access the trunk.
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