I have a 2006 Ford Freestyle and have changed the alternator 5 times now in the past 2 months, I replaced the tensioner pulley and belt also. So last week we ended up putting a Motorcraft alternator in and it ran good for 2 days and now my battery light and charging system light is on again. I'm wanting to know if I have ac in the back seat do I need a alternator that says rear ac or just the regular one. The Ford people said It could be my battery cable going to the alternator. Help Please!