Mercedes CL203/W203 5.25 speaker adapter

thingiverse

This is an adapter for the 5.25 rear speakers of the CL203, compatible with W203 as well. If you want to check if this file is compatible, look up the part number A2038201202 / 2752507830 on your original part. Also included in the files is a PDF top view drawing of the adapter, which you can print and use to verify that everything matches your mount or speaker. I had to replace my rear speakers, so I wanted to install some aftermarket speakers while keeping everything pretty stock with this adapter. In the makes section, you'll see one for each door - actually two, but I only took pictures of the first one for the purpose. Printed in 1.75 PLA at 218°C and 0.12 layer thickness, probably an overkill since it's winter in the south and faster printing can lead to other problems when printing without enclosure. That aside, everything worked well in my case - the stock speaker box has some ribs I had to reduce because it touched my Rockford Fosgate SP54 4ohm woofers. I'll soon create an adapter for the front speakers as well. When changing the speakers on this car, keep in mind that the stock speakers are well balanced in terms of ranges. For the rear speakers, you need something that tends to the low-mid range, and for the front speakers, something that leans towards the high-mid range. I've seen a few coupes with aftermarket speakers, but personally, I don't like when sound is balanced too much towards the mid-high range. Another option is to get the center woofer that comes with the Bose kit, but as I'm using my headunit's internal amplifier (Pioneer W8400 Nex, which pushes 50w RMS), I don't want to mess with another thing unless I find a good justification for myself.