is there 7 beeps in a row?? if so its definately the handbrake chime. First thing i would try is reconnecting whatever wire you took off and checking the tension of the handbrake cable. Next would be a faulty sensor, etc.
is the handbrake light on on the cluster? if not check the 4th connector on the bottom of the cluster the handbrake wire may be broken/pulled out
Definetly sounds like the 4th connector is the culprit then... Worst comes to worst pull the chime out of the cluster and be done with it