Hello, I have a Smart mhd Cabrio, BJ 06/2012. The thing has the original Smart Navi (Bosch Highline) in it, as well as the audio package consisting of a “subwoofer” (or something similar) under the seat, each with a mid-speaker in the doors and each with a tweeter at the top of the instrument carrier next to the disc fan. I would like to install a Moniciver with Apple Car Play and DAB+ here. Now the question with which I have overburdened every dealer up to now: What do I need to get that there? As Moniciver, I have something like the Kenwood8019DBAS in mind. Answer from the first dealer: “that’s what you can’t install” Answer from the second dealer: “we don’t know what was installed as a sound system. First, check this out” Unfortunately, I didn’t get any idea about the search in the forum. Therefore, I ask here: Is there any additional end stages, sound processors or anything else, or do the cables from the radio right here, I’m sure to the speaker?