Hi everyone. I have a 2004 CL55 pure German muscle car 😏. I am considering replacing the speakers in the lower back corners of the doors. Are these 2 ohm impedance speakers? Midrange? Do I have to replace the tweeter on the a-pillar in the upper front corner too. Anyone replace them with the same size or modify the location for a larger speaker. Any suggestions? I am just looking for a little clearer sound from a modern and new speaker. Thanks a lot for any help!