Good evening I ask for help because I’m getting really desperate I brought my Mercedes (W202) into a workshop for new loudspeakers (2 pieces in front) + tweeter crossover and power amplifier for the loudspeakers plus cabling. On the first attempt my speakers didn’t fit because they were much too big, after that the workshop installed everything except the loudspeakers and meant to me I only needed matching loudspeakers that I bought then also 2rd attempt And the speakers sound cruelly at hardly bass volume I can turn up like I want it sounds like an old radio. The workshop thinks it’s either on the car radio or on the amplifier appointments there is a luxury. And they want to ask for 50 euro again for what to look at plus what still needs to be done.Alternatives there is here where I live no where it could lie ? I put down a few data about which speakers etc. Thank you in advance Loudspeak he: Audio system Hx 165 dust evo 3 Amplifier: Audio system radios R-250.2 cables: all new also from Audio system car radio : KDC-BT950DAB