Mazda 6 aftermarket stero issues

[james vanderbeak]

OK guys im having a issue on my 2005 6 i have already hooked up a aftermarket stereo in it last night powers up and everything but now my speakers don't have sound coming out from them my dad and i wired the speakers i think right but i don't know

any suggestions ?

[Riki desu]

So the deck lights up and everything but no sound from the speakers?

Was there sound and then nothing?

Did you have the Bose stock hu or the non Bose hu?

Did you check all of your connections again? It could just be a connection issue.

[james vanderbeak]

i have the Bose system and the deck lights up and everything and no sound came from it at all i haven't gotten a chance to look at it again but ill do that when i get home i just left the original speakers in there

[Riki desu]

Then if you hooked the aftermarket hu straight up to the wires behind the head unit, you most likely fried the stock Bose amp that is located underneath the passenger seat. It may be in protection, but I'm not sure if it has a protection circuit.

Basically what you did is send an amplified signal (speaker level) to the Bose amp which is meant to receive a low level audio signal (line level).

The stock Bose headunit produces line level outputs which feed to the Bose amp under the seat which then amplifies and processes the signal and sends it to the speakers.

If you bypassed the stock Bose amp and sent wires from the aftermarket head unit to the stock speakers, you would have fried the aftermarket head unit because the speaker impendences are 2 ohms. But I believe you did what I explained above this paragraph.

Your best option to fix this problem would be to buy an aftermarket amp that is stable to 2 ohms and hook it up to your stock speakers and run RCA's from the aftermarket head unit to the aftermarket amp. Keep in mind you will lose function of the stock "sub". I don't even know the impedence of it but I wouldn't even try to power it because it doesn't do much anyways and you'd most likely blow it.

There are many other options but that would be the best quick fix. You can try to replace the aftermarket head unit with the stock hu (reverse what you did) and hope that the stock Bose amp still works but if it does not, you can not avoid spending money to get your speakers working again.

[james vanderbeak]

we got it ! thanks though it was a wireing issue that cructfeild told us how to fix thanks though

[Riki desu]

Originally Posted by james vanderbeak

we got it ! thanks though it was a wireing issue that cructfeild told us how to fix thanks though

Still, you can not run the Bose system off an aftermarket head unit by following the standard wiring or you will have the issues I described above at some point.

The only way to properly install a head unit with the Bose system is to solder RCA's to the stock wires running to the Bose amp and then connect the RCA's to the preouts of the aftermarket head unit. There is no point really because anything you do will be changed by the Bose processing in the stock amp so adding only a head unit to the Bose system is pretty much an expensive way of adding an ipod or usb connector, which you could of done to the stock hu.

[Mazda 6s GT]

Or get a 4ch line level converter if nOt enough RCA are present or too weak.


Also th original prOblem sounded like the remote turn wire wasn't hooked up

[fsSnowboard]

I have this issue and it looks like the remote turn on pin on the metra harness is in the wrong spot. It is right next to where it needs to be on the end of its row.

[justsomeguy]

i did an after market deck install on mine and it still works fine after hours and hours of abuse....i did the line outs first and it was still quiet (stock).....so then i made my own harness tapped in the just before the boss amp into the speaker inputs and wala loudness accomplished....sounds better too