Last night in this cold weather my drivers door on my 1998 pickup froze and the lock barrel cracked in half. Luckily I have on the shelf a brand new Fiat lock set part number 7079589 which consists of all the barrels and 2 blue keys and 1 red key. How do I get this to work on my truck? Is it simple as removing the old lock barrels, putting in the new ones and away I go or do I have to get it re-programmed? If so, how do I get it done? I do not have an existing red key, just one very battered blue key. How do I get my brand new red master key thats part of the new lock set to become 'the' master key? Any help much appreciated.