I drive a 2005 cabrio, with the sc901 and the RTI navigation ( cd type 2)
Sinds i took my flip-up navi screen out
My car, after turning the contact key on, gives two "boing boing" sound on the speakers. After turning to engine on, again two times the "boing boing" sound on the speakers. Never had it before and i cant find anny info over this in the manuals. Car is driving all oke and no foulds ore problems did happen driving parking and drive on. Execpt this "boing boing" sound on every turn on.
How knows what is goining on and how do you get it off






