Have you thought of replacing the stock radio host too? If you replace it with an aftermarket radio like seicane 8701, it will improve the sound quality significantly and add other new features like gps navigation and steering wheel control etc. while keeping the relevant dashboard parts.
yeah, the Seicane S301128 may help you upgrade your head Unit while keeping the original features like steering wheel controls, please take a look at it, hope it is helpful to you.
The original factory gps navigation may not have this feature, but some aftermarket manufactures such as the seicane S301129 may have it, I'd suggest you take a look at it. (cool)