I apologize that this is not exactly Maxima related but I can't get an answer anywhere else. I just put subs in my car and used the PAC SNI-35 adapter tapped into my back speakers. A friend of mine is about to put subs in his 01 F150 SuperCrew and needs to know what adapter he needs. I posted on f150online.com and they say we need an adapter but I can't get an answer on what kind. Should the adapter I bought work with any car, specifically his? Thanks.