Connecting a High-Low Converter

Moin zusammen. Erste Beitrag, direkt mal ne Fragen I have just written an e-mail to Hyundai about my problem. So that I don’t have to write the whole Kladeradatsch again, I just copy it in here. Maybe or rather hopefully someone has a solution for me. So here’s my e-mail: Dear Hyundai Team, first of all a big praise. My IX35 is absolute top. So far no problems with it. As you can think, however, is a mid-30 year old It is not satisfied with the built-in boxes in the car. For information: I own the version with Navi and additional amplifier in the trunk. To remedy the sound problem I have already installed new front rear speakers and tweeters. I would like to run the front system via a separate power amplifier, for which a corresponding high-low converter has served me to connect the power amplifier to the original radio. After I tried on the radio in vain, the cables for d He found the front and rear speakers so that the converter can be connected, a friendly employee of the Hyundai workshop gave me the hint that the cables go to the amplifier on the back, where we finally hid them behind a cover. The converter now gets quite normal power over + and – the plug in the amplifier and the speaker signals we picked up accordingly. Everything wonderful, my power amplifier but now I noticed when driving that the voice from my Navi and Bluetooth doesn’t work anymore. Why? Because I cut off the cables of the front speakers and extended them to my power amplifier so that I can also adjust them according to my needs. The connection of the front speakers to the built-in serial amplifier is now no longer available and I guess that from this amplifier also the voice signal goes forward to the radio again. t. So how can I manage that I can hear the sound again via the front boxes? Is there perhaps an appropriate adapter or other solution here? Can I pick up the cables accordingly, so that the connection is given forward, but the connection to my power amplifier still exists and does not go into the serial amplifier? I would be very happy about a positive feedback and remain with kind regards