Hello all, I am bribing an older Mercedes Benz W202 (Bj 97). The boxes in the car were not enough anymore – so I decided to exchange the standard boxes and the radio for new devices. I built the old boxes out of the disguise and changed the radio accordingly. Everything from the house Pioneer. The devices: 1x radio: DEH-1600UB 1x speaker set (low and tweeter) Model: TS-H1703 (17cm) The sound is actually better at very quiet volume. If I j However not loud – but it is inaudible to turn to “voice loudness”. The boxes scratch extremely – bass is equal to 0 (even at low volume bass = 0) The bass drivers are definitely not used here either – the bass membrane is almost not moving at all. On the Internet I have read something of “polished” and tried out without success. Also here in the forum there are similar topics however for me unfortunately without a usable solution. I am aware that I do not have a high-end system – however h I guess I’m wrong – or did I not consider anything? Do you have an idea? Perhaps a specialist is on the way in the forum? Thank you for your efforts and help!