Looking for a remote car starter for a 2005 MGM
 

I recently purchased a 2005 MGM and I want to get a remote car starter for it. Does anyone know what brand works best with the '05 MGM and would require the least amount of modification to the original equipment?

Also...any particular after market stero systems I should avoid? I want something with an AUX input and i am planning on purchasing one and having it installed as well.