Ring Alarm Retrofit Kit Questions

I'm considering purchasing the Ring Alarm Retrofit Kit to replace my existing alarm system, and have a few questions: • Will the base unit chirp when a door/window is opened if using my old hard-wired sensors? • Can I add a few wireless sensors to my system in addition to the existing wired sensors? • Can I add an Open Window Magnet to a window with wired sensors, or do they only work with a Ring wireless sensor? Thanks in advance.