Aftermarket a;arm system

has anybody install an aftermarket alarm in there tahoe. interested to know which brand is good. wanted to able to do auto start and open/close the rear hatch with the alarm remote as well.

Directed Electronics i.e. Viper Clifford Python etc

I got Autopage 2 way system... I love it so far.....

I've got Autopage in my obs, I've had the same alarm in all my cars. 2-way with remote start. never had a problem with it. (other than the paint peeling off the remote, but thats normal after a few years i hope) I've put in the rs727 and the rs1000. i've never had any come back.