Dear FIT friends,

i am from hong kong and i got an GE8 fit on last year,
last time i was seeking internet for upgrade full function of steering wheel control for my new carplayer of SONY xav-5000.

so....
i was bought the steering wheel additional control button and for DIY modify. unfortunate, the target function (phone call and cruise mode) didn't work
the clock spring was replaced to 20-pin ver.
i haven't see any control wiring diagram / cable mapping guide on web for help to solute problem.

may i got your's kindly support?

Many thanks
i got this wheel: https://autoparts.beforward.jp/detai...ls/PA08582830/