I srewed mine on to the plastic cowl at the base of the hood. Under the hood of course. Mine is on the passenger side. I cut out a patch of the sound "deadening" stuff. That way it is close to the solonoids.
Besides, its not something you want int he car. Thats how things get changed and screwed up. Also, you dont have to look at it.
Besides, its not something you want int he car. Thats how things get changed and screwed up. Also, you dont have to look at it.