use 1/2 wratchet or B/bar, dont waist time with 3/8 socket set as you may not get enough leverage to undo the nut, do a search on stearing wheel. there are some good tips someware in another thread.

with your alarm, did you turn it back on, was it getting power from the batt terminals that you disconnected, you might not of put the wire back on. some ZENON alarms freak out when the battery gets disconnected and they need to get reprogrammed.