there is no ultimate theft system
for remote unlocking & siren you can opt for steelmate system but do also ad trunk and bonnet triggers including doors of course
add hardware protection from 15 office the clutch bar with good american lock (not the typical china one )
when ever car is out of visual sight use hardware lock
if you have knowledge of car wiring & electronics ad engine cut off relay or fuel pump relay at very atypical spot ...
rest is Dua & Spurd-e-Khuda......