if you are talking about the data bus interface, and steering wheel control adapters, they aren't for noobs...the data bus gave me some trouble, and i've installed about 5 stereos before this vehicle. just do your research before you buy it. if you have the monsoon amp, you need the gmos-04 data bus. if you do not, then you need the gmos-01 data bus. any other ?'s let me know...