When the fuse blows do you have break lights? I would suspect no, and if that�s the case I would check for a short at the tail lamp sockets. Unfortunately, none of my schematics show the interlock circuit. But I think the interlock sol is wired directly to the BOO switch which in turn is feed off fuse 24 (fuse 23 is backup lamps). If the tails check out ok, then pull the console and unplug the interlock sol. If the fuse doesn�t blow with the sol unplugged, then the sol is shorted.
jeff