Question about odometer
 

Alright I purchased my 8 on monday (salvage title) It cannot be registered for road use in PA :( but oh well i got a good deal on it . I got it to use at the track only, i just want to know if anybody can help me out. How can i disconnect the odometer without taking the whole cluster out, is there a certain wire harness or a fuse for it. can i go behind the dash to do it?? I would really appreciate it if you guys can help me out.

thanks