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Just installed a Continental Stereo TR7412UB-OR

2phast

AMG Professor
Member
Not in a W124 though, but this is a solid contender for W124 owners wanted to keep the aesthetics roughly the same as an original radio.

In my case, the factory Becker W210 radio has limited upgradability. Yes, you can spend several hundred dollars and have Becker jimmy a Bluetooth module inside, but my unit also had volume knob issues, so I opted to just replace the unit.

The Continental is by far not a high end head unit, but you do get Bluetooth audio streaming, hands free calling and a USB input for playing music from a USB stick. There is no DSP functionality, limited EQ settings, no low level outputs and from what I can tell, no left/right or front/rear fader controls (I just installed it, so maybe I am missing some hidden menu for these, but did not see it in the owners manual).

The Continental has some other interesting features like a logic mode, which can be toggled on/off. If on, it will allow you to play the radio for 1 hour with the key off. Sadly, there is no dimmer for the amber illumination, at least not on this model, some of the Continental models do have that feature and some have DaB.

For my W210 (with Bose), it was almost a plug and play install, EXCEPT, the constant 12 volt and switched 12 volt are reversed in the vehicle wiring harness. So that requires partial disassembly of the factory plug, so you can use pin extractors to swap the wiring around. You could cut/splice, but the switched 12 volt is a thicker gauge than the constant, so I wouldn't recommend that option. Hard to say if that is an issue on the W124, but its worth mentioning.
Moderator edit: The same issue applies to all 124 chassis, the battery & switched 12v leads are backwards, and must be reversed as described above.

The unit I purchased came with new wiring harness's ready to splice into the vehicle wiring (I did not use) and two adapters that plug into the rear of the radio, one for steering wheel controls (thats an optional item) and one for an external microphone for hands free calling. The Continental radio does have a microphone on its faceplate, so you don't really need the external microphone (a external microphone is also included).

Also, while the Continental sleeve fits in the W210 original opening, the radio itself will not slide into the sleeve. The locking tabs of the sleeve are blocked by the plastic surrounding the opening. So you either go into the opening with a rotary tool and cut away some of the plastic, or you slide the radio into the sleeve and insert the sleeve into opening. The latter does not give you any security though, as the whole assembly will just slide right out again.

YouTube review here

 

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Not in a W124 though, but this is a solid contender for W124 owners wanted to keep the aesthetics roughly the same as an original radio.

In my case, the factory Becker W210 radio has limited upgradability. Yes, you can spend several hundred dollars and have Becker jimmy a Bluetooth module inside, but my unit also had volume knob issues, so I opted to just replace the unit.

The Continental is by far not a high end head unit, but you do get Bluetooth audio streaming, hands free calling and a USB input for playing music from a USB stick. There is no DSP functionality, limited EQ settings, no low level outputs and from what I can tell, no left/right or front/rear fader controls (I just installed it, so maybe I am missing some hidden menu for these, but did not see it in the owners manual).

The Continental has some other interesting features like a logic mode, which can be toggled on/off. If on, it will allow you to play the radio for 1 hour with the key off. Sadly, there is no dimmer for the amber illumination, at least not on this model, some of the Continental models do have that feature and some have DaB.

For my W210 (with Bose), it was almost a plug and play install, EXCEPT, the constant 12 volt and switched 12 volt are reversed in the vehicle wiring harness. So that requires partial disassembly of the factory plug, so you can use pin extractors to swap the wiring around. You could cut/splice, but the switched 12 volt is a thicker gauge than the constant, so I wouldn't recommend that option. Hard to say if that is an issue on the W124, but its worth mentioning.

The unit I purchased came with new wiring harness's ready to splice into the vehicle wiring (I did not use) and two adapters that plug into the rear of the radio, one for steering wheel controls (thats an optional item) and one for an external microphone for hands free calling. The Continental radio does have a microphone on its faceplate, so you don't really need the external microphone (a external microphone is also included).

Also, while the Continental sleeve fits in the W210 original opening, the radio itself will not slide into the sleeve. The locking tabs of the sleeve are blocked by the plastic surrounding the opening. So you either go into the opening with a rotary tool and cut away some of the plastic, or you slide the radio into the sleeve and insert the sleeve into opening. The latter does not give you any security though, as the whole assembly will just slide right out again.

YouTube review here

Nice! BTW I installed one in my 210 last winter and ran into the same cage issues that you ran into. As well, press the SEL button followed by FWD / BACK to get to the fader and balance controls.

The lighting does not exactly match the 210 HVAC panel, but if you swap out the bulb in the HVAC panel to an orange LED you can get a perfect match. Since the center console reads visually as a separate massing from the instrument cluster, the resultant slight mismatch in lighting color between the IC and center console goes unnoticed in day to day usage.

The SWRC steering wheel resistive controls use resistive values that I could not get working. I tried both a Metra Axxess and a PAC SWI-CP5 — both of these could register CAN Hi / Lo button presses from my steering wheel and could control an aftermarket Alpine HU, but could not control the Continental.
 

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Thanks for the tips. Figured I was missing something for the balance/fader controls. Menu system is not user friendly.

If Continental can implement Logic in the unit, then they should of added an additional Logic option to swap the constant 12 v and switched 12 volt. Fighting with that OEM connector was crazy, you just can't release/remove those pins without taking the connector apart.

I may upgrade the bulb in the climate control, it definitely looks better.
 
I've been a fan of the Continental units since they came out. I haven't put one in a W210, but I have done W124s and W126s, encountering the "sleeve" issue (grr) but really enjoyed the correct "period" look they have. Not the finest in car stereo, but more than passing and with the added modern functionality they add they're a great vlue, I think.

Now if I can figure out how to do an aftermarket head unit in my 2003 W211 so Mrs. Dan get a backup camera... @2phast did make some suggestions when I asked if they made one of their cool rearview mirrors for a W211. Still haven't convinced myself to carve up the existing telematics...

Dan
 

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