i have a old Yamaha motorcycle that i am swapping the stock am/fm tape deck with a bluetooth head unit. i want to add a remote for my radio like to stock had but with more controls (the stock controls have a mute and a seek up) i would like to have a call pick up and preset up down and volume. i will be using a pac adapter and just need to know if that adapts just simple button presses or is the output from a stock steering wheel a digital signal? i will be building a box with buttons to mount on the left handlebar under the clutch