So to make it all work it needs the wiring, buttons, clock spring, vacuum solenoid, the bracket for the solenoid and the throttle cable. Start by checking for the plug for the solenoid, then check the plug to the ECM for the proper wiring and finally check for the correct clock spring before ordering anything. Some wranglers came pre-wired. Some also shipped with proper clock spring even if it was not optioned with cruise. The thread I followed is actually from another site I suspect some here are not fans of but the info was good. If you PM me I'll send you a link to it. My TJ had all the wiring but I did need the clock spring and because of the year in addition to the mentioned parts I bought a new air bag with trim. The 98 had a one piece trim that extended to the rim of the steering wheel. The buttons replace the ears from the airbag to the to rim. Also make sure you get the short Y wiring harness that goes from the clock spring to each button set it will usually sell with the buttons as a set when buying used.