I have the 2WFMR CompuStar alarm and auto start on my MTX. Kinda expensive but worth every dollar spent: it has remote door+trunk and upto 2 more auxiliary options, turbo mode, timer start mode, pager and 2 way comunication remote.
sorry don't know much about the Ungo systems.


95 SE MTX DH UIM, 65mm TB, SC CAI, Quaife, Centerforce, Fidanza, UR Pulley, F/R Strut Braces, Cross Drilled Rotors, S.S. Brake Hoses, 18" Enkei RS5, SVT Engine Mounts+Inserts, MSDS & y-pipe, Trubendz resonated exhaust & MagnaFlow cat