Speaker problems

[mateo710]

Ok just bought a 92 525i and the only speakers that work are the rear ones on the shelf. Any ideas where I should start the hunt for the problem?

[strad]

Probably the amplifier. It's in the trunk on the left side behind the carpet.

[pennpen]

or the others are disconnected because they are blown so bad the PO just didn't want to hear them

[mateo710]

or the others are disconnected because they are blown so bad the PO just didn't want to hear them

Yea I considered this... Oh well I'll start tinkering tomorrow and make sure all connections to amp are good first.

Oh and I'll be putting in a sub soon and was wondering if there are RCA jacks behind stock stereo?

[attack eagle]

check speakers.

amp could be blown too

and no. it is a stock stereo

[mateo710]

Ok I'm pretty sure it's the amp thats messed up. Is there any way to test it? Im not sure if it's getting remote power though because I set up a second amp for a sub and spliced the remote power line for the other amp and my sub amp wouldn't turn on. So maybe the stock amp is just not turning on?

[MBman]

if it is an aftermarket I'd pull it and check conections, really easy to mess up , including amp and speaker connections, especially if you have a common ground set up

[mateo710]

No I know it's remote because when I bypass the remote it'll power on fine. The remote isn't putting out any power and I'm starting to think this is why the stock amp isn't working either

[GIANUCCI E30]

Your remote on the sub amp doesn't put out juice because it is supposed to receive power from a antenna or some type of power on trigger source. If your stock amp is shot you have a few choices on how to remedy this.

1. Replace the stock amp. The easiest of measures.
2. If you have a aftermarket head unit you plan to install. Remove the stock amp and rewire the car. This is not a simple task but it can be done.
3. Make sure it's not a speaker. Like everyone is telling you.

Here's the layout:



www.adst.com

BMW E34 5-series 1989-1995 factory wiring color code:

1989-92, 1994-95 1993

signal from radio color connector/pin # color connector/pin

front left + yellow/red 26pin/16 yellow/red 12 pin/11
front left - yellow/brown 26pin/17 grey 12 pin/10
front right + blue/red 26pin/15 blue/red 12 pin/6
front right - blue/brown 26pin/14 blue 12 pin/4
rear left + yellow/blue 26pin/3 yellow/black 12 pin/12
rear left - yellow/grey 26pin/4 grey 12 pin/10
rear right + blue/violet 26pin/2 blue/black 12 pin/5
rear right - blue/grey 26pin/1 blue 12 pin/4
remote turn-on white 12 pin/2 white 12 pin/2



amplifier output wiring color connector/pin# color connector/pin #

front left tweeter + yellow/green 26 pin/21 yellow/green 12 pin w/11 wires/1
front left tweeter - yellow/brown 26 pin/22 yellow/brown* full 12 pin/2
front right tweeter + blue/green 26 pin/23 blue/green 12 pin w/11 wires/8
front right tweeter - blue/brown 26 pin/ 24 blue/brown* 12 pin w/11 wires/5
front left mid + yellow/white 26 pin/25 yellow/white full 12 pin/7
front left mid - yellow/brown 26 pin/26 yellow/brown* full 12 pin/2
front right mid + blue/white 26 pin/8 blue/white 12 pin w/11 wires/6
front right mid - blue/brown 26 pin/9 blue/brown* 12 pin w/11 wires/5
front left woofer + yellow/red 12 pin/7 yellow/red full 12 pin/1
front left woofer - yellow/brown 12 pin/8 yellow/brown* full 12 pin/2
front right woofer + blue/red 12 pin/9 blue/red 12 pin w/11 wires/12
front right woofer - blue/brown 12 pin/10 blue/brown* 12 pin w/11 wires/5
rear left tweeter + yellow/black 26 pin/10 yellow/black 12 pin w/11 wires/7
rear left tweeter - yellow/grey 26 pin/11 yellow/grey* full 12 pin/3
rear left woofer + yellow/violet 12 pin/11 yellow/violet full 12 pin/8
rear left woofer - yellow/grey 12 pin 12 yellow/grey* full 12 pin/3
rear right tweeter + blue/black 26 pin/12 blue/black 12 pin w/11 wires/9
rear right tweeter - blue/grey 26 pin/13 blue/grey* 12 pin w/11 wires/10
rear right woofer + blue/violet 12 pin/5 blue/violet 12 pin w/11 wires/11
rear right woofer - blue/grey 12 pin/6 blue/grey* 12 pin w/11 wires/10
+12V constant power red/white 12 pin/1 red/white 12 pin w/11 wires/2
ground brown 12 pin/3,4 brown 12 pin w/11 wires/3


*wires marked with an asterisk are common with other like-colored wires in 1993 vehicles. Unwrap the wiring
harness approx. 18" back from the OEM connector to break this common.