A few units make use of a key Music. Basically, the first time the unit is used, the unit will ask for a key CD. You insert any CD, along with the unit can designate that CD although key Concept album. If the power is disconnected, the unit will call for the key CD before it will function additional. The primary advantages of reprogramming your ECU are startling. Normally aspirated cars running on gas will see a ten to fifteen…