In the wiring process right now. Ordered the HU from crutchfield and of course, came with all the kits and wiring harness needed for the installation. But came across a few things that I really don't have a clue.

for the front speakers wiring, here's the wiring diagram on the stock Concert HU:



and here's all the plugs that goes into the stock HU (upside down from the diagram):




according to the diagram, the brown one is the one that goes to the front speakers. But if you look at it carefully, there's only 2 wired socket



so according to the wiring diagram (highlighted in red), those wires goes to the LEFT FRONT speaker channel, so the wires to Right Front speakers are missing?!?! What's going on here?
And why is there 2 wires each (2 brown 2 blue) goes into the Left Front speaker sockets? the missing RF speaker wirings just doesn't make sense to me. why would my right front speaker even have any sound now if there's no wires to it?! Any experts out there got any advice?

also another question is...
this wire

connects with the stock HU (location highlighted in RED):


what's it for??? Grounding?

Thanks in advance for any info! Much appreciated!

 

the 2 wires, one is possitive the other is negative... so that is that

do you have tweeters?


cause that looks to me like brown are for one side and blue the other

that tab, not sure on

 

Yeah I do have tweeters, it's the factory Bose setup, 2 front (+2 tweeters), 2 rear doors, and 2 rear deck + amp.

so what's going on with the supposedly RF wiring then? you are saying that 1 set of those double wires in picture 3 should be for the right side while the other set is for the left?

 

I am pretty sure that the spot I circled for you is the speaker out. The rear door and rear deck speakers both come out of the same spot.

RF = Right Front
RR = Right Rear

LF = Left Front
LR = Left Rear

Those are your line out wires.

Josh

[IMG]local://upfiles/22562/1F39CAAE715E42E5B7AB111A03E84925.jpg[/IMG]

 

so what are the wires for going into the LF +/- socket then?

this bose wiring system SUCK!!!GAAAHHHHH!!!!!

 

I'M not sure. LOL I know I just hooked up an amp to my factory system and I hooked the converter to go from the normal wiring to the RCA I put them into the spot I showed you for the rear speakers (LR and RR) and it works great.

Josh

 

somebody could have took them and crimped them together at one time. you still get the same music left and right unless the song had effects that went from one side to the other.

 

Well mine was the same as his so I don't think thats true. I am not sure what those are for. Possibly the bose amp??? IDK. But I know I can hear the different sides when there are music effects.

Josh

 

OKAY! now... I just installed the unit and wired it up with all speakers and all that jazz... the sound to all speakers comes from the RCA jack. You can have just the same sound EVEN WITHOUT that brown socket plugged into the wiring harness (INTERESTING ISNT IT?). I even tested that I had all the RCA jacks unplugged and ONLY have the brown socket plugged in...now the system only puts out sound in the left front speaker!!! Okay.. so Question#1 WTF is that jack for anywayz? #2 if Josh also had the same set up in his car.. then what's the use of having "extra" set of wires going to JUST the left front speaker?

and Josh, when you installed your aftermarket headunit, did your antenna work? I used the adaptor from Crutchfield and it doesn't do jack for me, i can hear very very little FM station sound with tons of static. And btw, where did you ground your headunit?

Also, how do wires to front door speakers run? I am interested to know how you switched out all the wires when you installed yours. cuz the hissing sound from my right front door speaker is still there after I switched the headunit, and a for sure working identical bose speaker... so it comes down to wiring for sure....

 

I am still using the stock HD. I just installed an amp into it to run subs. I will be changing out my HU for a Pioneer AVIC D3 here soon hopefully then I can give you a better understanding.

Also when I did change out my HU in my older A4 I had lots of static problems with the antenna adaptor as well. Sort of pissed me off.

Josh