QUESTION: Factory M5GT Radio w/ Separate Tweeter

[dieseldriver]

I have a question: does anyone know if the factory radio equipped with a separate tweeter has a dedicated audio signal coming straight from the radio or it is connected in parallel with the signal feed to the midrange speakers?

Thanks!

 

[Silentnoise713]

Schematics for '06-'10 models do not show any separate channel for tweeter and I don't think the '12+ are any different. Most if not all car radios are 4 channel (not sure about the Bentley, Maybach, etc. and some may have a dedicate sub out). The tweeters are usually run in parallel from an existing channel with a simple inline high pass filter.

 

[dieseldriver]

Ah, okay. Thanks. I am showing that the front LEFT are RED/WHITE and the RIGHT is YELLOW/GRAY and it's the same color on the tweeter as well. This makes it easier now to run it to the new crossover that I am getting with the Focal 130A1 speaker kit which should make it sound better. BTW, when I put my ears on the mids and tweeter that's on there now, same thing that was playing on the mid was kind of playing on the tweeter as well (i.e. no separation in frequency pass on the tweeter in comparison to the mids). Also, I do show that the tweeter assembly has a small cap in it which, which may be acting as to pass high frequencies but blocks low ones. Or it could be just there to suppress any DC voltage coming to it acting as a filter (maybe to get rid of those hums?).

BTW, will you be able to post the picture of the schematic?

Schematics for '06-'10 models do not show any separate channel for tweeter and I don't think the '12+ are any different. Most if not all car radios are 4 channel (not sure about the Bentley, Maybach, etc. and some may have a dedicate sub out). The tweeters are usually run in parallel from an existing channel with a simple inline high pass filter.

 

[dieseldriver]

So I was goofing off working from home today and did some Googling on the component system. Yes, I think the factory tweeter is just a tap off the midrange speakers. To do this right, I'd have to run a new speaker wire (+ and -) to run to the new midrange. Use the existing speaker wire (RED/WHITE, YELLOW/GRAY) to the new tweeter. Connect directly behind the head unit speaker wires to the input of the crossover. Connect the woofer and tweeter connection from there. It should work fine logically speaking.

UPDATE:
I found where the tweeter signal wire splits off, it's at the door. It splits off right before it goes to the midrange and tweeter (see picture). This actually makes it a bit easier as I probably be mounting the crossover unit right behind the kick panels then run another speaker wire directly to the speaker.

Schematics for '06-'10 models do not show any separate channel for tweeter and I don't think the '12+ are any different. Most if not all car radios are 4 channel (not sure about the Bentley, Maybach, etc. and some may have a dedicate sub out). The tweeters are usually run in parallel from an existing channel with a simple inline high pass filter.

 

[Silentnoise713]

Ah, okay. Thanks. I am showing that the front LEFT are RED/WHITE and the RIGHT is YELLOW/GRAY and it's the same color on the tweeter as well. This makes it easier now to run it to the new crossover that I am getting with the Focal 130A1 speaker kit which should make it sound better. BTW, when I put my ears on the mids and tweeter that's on there now, same thing that was playing on the mid was kind of playing on the tweeter as well (i.e. no separation in frequency pass on the tweeter in comparison to the mids). Also, I do show that the tweeter assembly has a small cap in it which, which may be acting as to pass high frequencies but blocks low ones . Or it could be just there to suppress any DC voltage coming to it acting as a filter (maybe to get rid of those hums?).

BTW, will you be able to post the picture of the schematic?

That would be the high pass filter. The speaker systems is not part of the car's electrical circuit, sorta speak but grounding will help eliminate noise/interference, as will using speakers wires with proper shielding and placement.

For OEM radio schematics, youll have to search this sub-forum. NOTE: I recall seeing threads and diagrams for Mz5 vs Mz3 and they seem to have different color coding for some wires!

Btw, are you dynamatting (or DA alternative)? Hate for you to do a 3rd round for that

 

[dieseldriver]

Yes, I will be putting down Dynamat, already ordered the Extreme Two Door kit. I need to figure out removing the black plastic panel slightly so I can cut pieces that will go on the outer sheetmetal that is on the outside. Currently trying to remove the radio so I can tap wires directly from the behind. Got everything off except the trim that holds the radio in place. I might order the 4channel amp and put it in the glove compartment along with the crossover units. It could be fun if I had everything in place and if this wasn't my daily driver but oh well.. you know how it is...

That would be the high pass filter. The speaker systems is not part of the car's electrical circuit, sorta speak but grounding will help eliminate noise/interference, as will using speakers wires with proper shielding and placement.

For OEM radio schematics, youll have to search this sub-forum. NOTE: I recall seeing threads and diagrams for Mz5 vs Mz3 and they seem to have different color coding for some wires!

Btw, are you dynamatting (or DA alternative)? Hate for you to do a 3rd round for that