Hello guys, I wanted to inform you about my project yesterday. I had a professional workshop instead of the original speakers installed a very high-quality composystem by Rockford Fosgate, which has about 300 Euro list price. I wanted to control this via my old Solid4 final stage which was accommodated in the spare wheel pit. Just like my old subwoofer. Apart from the fact that the heres during the installation very cursed due to the low space conditions en *g* unfortunately the following problem has emerged: As soon as you connect the loudspeaker cable to the amplifier via high-level input adapter to the original radio (by the way, I also had the “Soundplus” package installed) instead of the front speakers, the radio mute remains… Although the rear boxes are still connected via original cabling, these do not give any sound of themselves. Only if you connect the cables directly to the new boxes again, instead of the amplifier, one hears again what… Apparently this “tolle” radio should have a kind of “security” lock-down and as soon as there are no boxes to turn on, on mute or similar… I guess that radio would like to recognize a resistance of about 4Ohm so that it plays… Does any of you already have similar experiences? I don’t think, since the dare is still too new…. Or maybe yet? Is there a solution, e.g. resistors in between? if so what do they have to be able to do? Thank you in advance