I've got a 2000 Caravan and am interested in swapping out the standard instrument cluster with a cluster that has the tachometer. I've done this before on other cars, sometimes it's a straight swap, other times it involved "rewiring" the connectors. Has anyone done this or can tell me if this is a straight swap or is there alot involved. Also, must the new cluster be from a donor car of the same year? The odometer is digital but I've been told the odometer reading are stored in the BCM and not the actual cluster. Thanks alot in advance ! Tony