The basic method works with all aftermarket head-unit conversions, because you're essentially converting the car from fiber-optic to copper, like just about every other car out there. "Can" you keep the stock amp inplay with an optic adaptor? Yes, you can, but the sound quality won't be as good as you'd expect. The reasons for that are detailed in the Android sticky post at the top of the W220 forum, currently page 11.
Sheesh, Dave. Now you have the poor man running scared.... What you're forgetting is the stereo signal being broadcast over the airwaves is only two channels to begin with. There's no surround sound, no "rear projected" signals to be decoded and used only by the rear channels. There's just left...
Now, as to your question about speakers...keep reading that thread, and you'll understand why I replaced the factory Bose speakers in the doors with aftermarket ones. I chose the Phoenix Gold coaxial models because I found that they sounded best to my ear and were also pretty darn affordable for the quality of sound that they give you. The short version is that the factory Bose speakers do benefit from "Bose equalization" and are also 2-ohms. The Erisin Android units can handle 2-ohm speakers; that's not the problem. The problem is the Bose equalization curve that the factory speakers are expecting to get from the head unit. Read that part of the thread, and it'll make more sense.
Hello Cowboyt .
At the very beginning I want to apologize in advance for the weak English.
I am a layman in the field of audio installation, and my humble knowledge has recently increased only thanks to studying various forums, but I obtained the most valuable information thanks to you and "Dave2302" so here I want to convey respect for the great project of installing the Android radio installation replacing the archaic Comand 2.5 or Comand-APS and creating the entire encyclopedia regarding various changes and add -ons.
I am a mechanic with over 30 years of experience, but I have never done any radio installation.
Such works were dealt with by my employees, but after selling the workshops in 2017 they had to go to Germany in search of work, because with the new owner of my workshops, they could not communicate absolutely and my contact with them broke up completely and today I have to look for support on the Internet.
I have several cars of one model, i.e. the CL55 AMG 360 and 500 HP, one car (with the highest mileage 120k km) I want to donate to my son and therefore I want to change the radio to more suited to the present time, and this is certainly not Comand 2.5 which does not bother me However, he is a drama for a young man.
My intentions apply to the 2002 model, i.e. based on the D2B installation. I gained basic knowledge from reading a lot of information in this forum:
Android head unit install, anyone have questions?
The radio I want to mount is Klyde:
The basic specification, which the company can adapt according to my wishes, but I will not change anything, because I have no idea about it:
OS: Android 12 system
CPU: MT8667 Cotex A75*2Core+A55*6 Core
RAM+ROM : 8GB+128GB
Capacitive multi-touch screen
4G LTE+BT5.0 (support tripartite calls)
1080P AHD reverse camera input+CANBUS
Earlier I was interested in radio Erisin to which you pointed to in my posts, but after longer research and hints from the Chinese friends with whom I have been cooperating for years by importing CNC milling machines from China, I came to the conclusion that Klyde, or rather "SzKlyde" is the mother of many companies And most likely Erisin also, where he creates small mounting plants to make little Firek look like the manufacturer, and in fact he is only a glass monter.
They are much more plastic and can introduce a lot of changes if you need such, I always talk from the position of Alibaba, i.e. the manufacturers' portal, not Aliexpress or similar which are not for sales traders not their product, so I talk to them and it goes very well, because always When I order something new, it is treated as a test sample, not a regular purchase, then the manufacturer must climb higher if he wants to have a new customer to buy more pieces.
I have a few very important questions for me, if you want to answer me, I will be extremely grateful for it, because I collect basic information for the fitter I have here, and I currently live in such a wild field that I have 49 km to a small town, and to Warsaw , i.e. the city in which I conducted workshops over 350 km, so I found who I could, he has knowledge enough to mount the installation if I tell him what to use, because he cannot advise myself and hence my search in the subject I do not know.
You carried out various installations and can the .pdf diagram posted above by "iMissMyW140" be applied to MB CL55 2002 with D2B? because the given diagram applies to the newer model, i.e. the MOST after the facelift in 2003.
I also have newer models, but I'm not going to rebuild them, because they are rare cars and there are fewer and fewer of them, and I want them to keep as much of the original as possible.
It is known that in the model before the facelift you have to cut the console to fit any other radio, but cutting the console and perfect fit lies in my competences and skills, and even passion, because I like to create new things and rebuild the old ones.
The radio has a built-in CAN decoder and no decoder with a wiring harness is needed, it also has probably five audio channels if I'm not mistaken, because for me it's black magic.
I want to install an amplifier for all speakers, run a cable for 6 channels to RCA, but I have a dilemma here, because the radio has only one RCA output for SUB, and if not all, then most amplifiers have two inputs for SUB, should I use a splitter or some other way to connect it?
Below I will give you a list of amplifiers that I am considering, but I would like to emphasize once again that this is not based on technical knowledge, but only on brands that I know and I will be grateful if you tell me which one would be good:
01 - Phoenix Gold RX2-750.5 wzmacniacz 5-kanałowy - sklep Centrum Audio
02 - Phoenix Gold SX1200.5 - sklep Centrum Audio
03 - JL Audio RD900/5 - Wzmacniacze 5 Kanałowe
04 - Hertz ML Power 5 - Wzmacniacze 5 Kanałowe
05 - Hertz HCP 5D - Wzmacniacze 5 Kanałowe
06 - Hertz HDP 5 - Wzmacniacze 5 Kanałowe
07 - Audison SR 5 - Wzmacniacze 5 Kanałowe
08 - https://www.audiosklep.pl/audison-sr-5600-p12178
09 - https://www.audiosklep.pl/alpine-s-a55v-p10167
10 - https://www.audiosklep.pl/alpine-x-a90v-p6787
I know that there is a very large discrepancy in power and price, but I don't know about it and that's why I choose with my eyes, not with my mind, maybe these amplifiers will blow Bose speakers into space, or maybe they will be too weak, I don't know, because it only a professional can know, because I don't even know what the power of the original Bose amplifier is.
Another very important and strange thing for me is how to run the "LM Benz" cable and whether to run it at all if the whole bundle of wires goes to the amplifier from the RCA radio?
I assume that there must be something going on in the "LM Benz" cable, because there are probably not only speaker cables, and maybe it would be good to connect the so-called high-level cables to the amplifier, i.e. those from the "LM Benz" cable, and not from the RCA outputs?
A possible change that I still want to make is to replace the speakers in the door as you described in one of your posts, i.e. "Phoenix Gold 6.5", model SX65CX"
I found the speakers in Sweden, they have 4Ω and other speakers in Bose have 2Ω, and does it not interfere with each other?
Can you tell me where the CAN bus is located in the car? from what I read on the forum, it is under the floor of the front seat but I do not know if this is good information.
Thanks in advance for your help and advice.