Switch BNS 5.0 to a 1DIN car radio

Good day dear community. Since I found very little to my project in general on the Internet and encountered a problem, I wanted to ask if it is basically possible to convert it from a RNS-E navigation device to a normal 1DIN car radio from Pioneer without a large cable cutting / soldering. I drive an Audi A3 8PA Sportback BJ 2007. I have already found a suitable installation frame, but now apparently still need suitable adapters, or maybe I can not ? Would be grateful for any help MfG