Wiring LOC in 04 Mazda 3 with Bose

[bjfish11 5,000+ posts]

Trying to install a LOC in a buddies car, and the Bose stereo is kicking my ***. I have good power, ground, and remote lead to the amp. Im just having a hard time hooking up the LOC. I have tried tapping into a rear door speaker as well as the factory sub in the back. Just cant get a signal to the amp.

Is there something special I need to know about the Bose systems? Im not much of an installer... Any help, tips are appreciated.

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[MisterGrubbs 5,000+ posts]

I had the Bose in my 2007 MazdaSpeed3, IIRC when we tapped the LOC, the Amplifier was(I might be wrong, but I think) under the drivers seat, we ended up having to tap the output after the bose amplifier and going from there.

I just remember my LOC being located in the pillar just over my left shoulder, but at ground level.

Hope that helps some BJ

 

[jaymann107 10+ year member]

In my acura had to try 3 different (new) LOC because the first two I got were bad. All three were the same brand also. what brand are you using?

 

[Mike465 10+ year member]

Grey plug, left side of amp:

Sub: White/Blue+, Grey/White -

Black plug right side of amp:

LF:White/Black +, Grey/Black -

RF: White/Red +, Grey/Red -

LR: White/Purple +, Grey/White -

RR: White +, Grey-

 

[x1le 10+ year member]

If you tapped the sub wires AFTER the amp and are still not getting a signal, something else is the culprit.

 

[bjfish11 5,000+ posts]

Grubbs, his amp is under his passenger seat. Not sure on the brand of the LOC at the moment. We have 2 different ones we have tried.

Mike, thanks for that info. We have tried tapping into some of those wires in the past, with no luck. Ill check what we have compared to your info, and hopefully we had a bad diagram before and were tapping the wrong wires.

If there is anyone in the Wichita area that is experience with this crap, hit me up. I have some beer and cash. haha

 

[x1le 10+ year member]

Grubbs, his amp is under his passenger seat. Not sure on the brand of the LOC at the moment. We have 2 different ones we have tried.
Mike, thanks for that info. We have tried tapping into some of those wires in the past, with no luck. Ill check what we have compared to your info, and hopefully we had a bad diagram before and were tapping the wrong wires.

If there is anyone in the Wichita area that is experience with this crap, hit me up. I have some beer and cash. haha

are you positive it's not the amp? Try running an ipod straight to the rca inputs and see if it works.

 

[Mike465 10+ year member]

If you have a tone generator test the inputs of the amp, if that works try using a diffrent set of RCA's. If that still does not work take some scrap RCA's cut them off and using a DMM, measure to see if you are getting any voltage from the LOC (Take the scrap RCA's cut the plugs off around 3-4 inches down from the plug and pull the two wires apart. Then plug these into the LOC and meter it so see if you are getting anything form the LOC)

If you don't have a tone generator then here is a link to get one. Very, very usefull tool........................

http://www.installer.com/item/display_item.php?it=ibn-899

 

[RED3 10+ year member]

check out mazda3forums.com for several threads in the electronics sections on how to defeat the bose system

 

[Mike465 10+ year member]

check out mazda3forums.com for several threads in the electronics sections on how to defeat the bose system

He's not looking for an amp bypass.

 

[FurbiesAndBeans 10+ year member]

Here ya go, this should work and will take away all the headaches:

http://cgi.ebay.com/ebaymotors/PAC-AOEM-MAZ2-Mazda-Add-An-Amplifier-Adapter-FREE-S-H_W0QQcmdZViewItemQQhashZitem1c0d17e995QQitemZ120478755221QQptZCarQ5fAudioQ5fVideo

 

[bjfish11 5,000+ posts]

are you positive it's not the amp? Try running an ipod straight to the rca inputs and see if it works.

Tried a second amp as well. We will do some more playing today. If we cant figure it out still, may just break down and buy that adapter...

 

[x1le 10+ year member]

Tried a second amp as well. We will do some more playing today. If we cant figure it out still, may just break down and buy that adapter...

wish I lived closer. it sounds like you're probably just overlooking something simple...

 

[Mitch86 5,000+ posts]

Here ya go, this should work and will take away all the headaches:http://cgi.ebay.com/ebaymotors/PAC-AOEM-MAZ2-Mazda-Add-An-Amplifier-Adapter-FREE-S-H_W0QQcmdZViewItemQQhashZitem1c0d17e995QQitemZ120478755221QQptZCarQ5fAudioQ5fVideo

Had to use a similar device on a couple of installs. As far as I know, that is the only solution to get around factory "premium" sound systems. Pain in the ***.

 

[bjfish11 5,000+ posts]

Ok, we got that harness in. Now we have other problems. Even with the orginal factory harnesses connected the radio, it will not power on. Just the time is displayed. Does the Bose unit have any sort of security features since we killed power?