Hello to each other! I have a Caddy Maxi with Radio-Navi RNS 315. Since I consider the sound to be quite worthy of improvement, I would like to connect an external power amplifier. My questions: 1. Does the RNS 315 Cinch outputs? Lt. of the few photos that I could ergoogle in the internet, there is no Cinch port available, but it is always written that an external power amplifier can be connected. Does anyone have any experience there? 2. If an external power amplifier is connected, then the internal power amplifier is muted, or can you use the existing speakers? I would like to run the front speakers directly over the RNS 315 and install a small subwoofer with two satellite boxes in the rear. For hints already a thousand thanks! Langelotte