Hello guys, I really have a huge problem. I have an E36 Limo. The car radio JVC KD-SH 55R is used. The bmw has a tweeter in the front door door and a “bass loudspeaker” in the footroom. Now I bought the Axton CAX138 speaker system for the footroom. These are 2 ways speakers. But also it doesn’t sound great. Someone said to me that there was a crossover in it. Nice and good, but more than the tweeter area can these auc h not cover, although the seller promised me I already had a really good sound with these loudspeakers. What can you tell me about it? Do I need a power amplifier, or do the 13cm loudspeakers due to design not bring any more? Thank you in advance Martin