Front speakers dont work

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Gordon13
Joined: Tue 16 Sep, 2014 19:45
Posts: 58

  Z3 roadster 2.2i

Front speakers dont work

Post by Gordon13 » Sat 11 Jul, 2015 13:32

Ive had this fault since i bought the car, so today started to look into it.

The front speakers in the foot well make no sound at all. if i put the the fader control all the way to the front only the tweeters in the door work

I took out the speakers and the left front one has a circuit board mounted on it which I guess is a little amp.

The wiring from the head unit only has L/R R/R L/F and R/F output's so it would seem that there is output on the front as the tweeters work so I'm suspecting the amp?

All help appreciated.
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Southernboy
Joined: Thu 07 Oct, 2010 13:39
Posts: 6312

  Z3 roadster 3.0i
Location: Johannesburg

Re: Front speakers dont work

Post by Southernboy » Sat 11 Jul, 2015 17:16

Have you tried connecting the foot well speakers to an alternate feed to determine if the circuit or speakers are faulty ?
"Normal is overrated"
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MarkAP68
Joined: Sat 03 May, 2014 22:32
Posts: 42

  Z3 roadster 1.9
Location: Swadlincote

Re: Front speakers dont work

Post by MarkAP68 » Sat 11 Jul, 2015 17:35

When I replaced mine last year I didn't notice any circuit board, I've just looked in cupboard incase I had the originals that I could have sent you but looks like I chucked them sorry. :(

I replaced mine with 'Edge' ones from Halfords which have improved the sound immensely and I added the exta tweeters they came with into the doors so I have 8 speakers instead of the usual 6 :D

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Southernboy
Joined: Thu 07 Oct, 2010 13:39
Posts: 6312

  Z3 roadster 3.0i
Location: Johannesburg

Re: Front speakers dont work

Post by Southernboy » Sat 11 Jul, 2015 17:59

My OEM speakers in my 2.8 had the little chips at the speaker terminal too. Made no difference to the functioning of the system when I replaced them with new Sony's.
"Normal is overrated"
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Robert T
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Joined: Mon 12 Jun, 2006 11:35
Posts: 9984

  Z3 roadster 1.9
Location: Cheshire

Re: Front speakers dont work

Post by Robert T » Sat 11 Jul, 2015 22:35

There are two possibilities here. 1) The headunit is not connected to the remote control wire that turns on the amp or 2) the amp is not working, possibly due to a failed relay.

If the headunit is not original, then the wiring may never have been correct. When I replaced my headunit, I had connect an additional wire labelled remote control, which turns on the remote amp. This is on all the time the the headunit is on, not to be confused with the aerial remote which is only on when the headunit is switched to radio, as it is designed to operate a retractable aerial.

There are a couple of threads on here about replacing the relay and making up a bypass for the amp without butchering the wiring loom.

Bypass: http://www.zroadster.net/forum/viewtopi ... =amplifier

Relay: http://www.zroadster.net/forum/viewtopi ... ight=relay

Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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Gordon13
Joined: Tue 16 Sep, 2014 19:45
Posts: 58

  Z3 roadster 2.2i

Re: Front speakers dont work

Post by Gordon13 » Sun 12 Jul, 2015 07:12

Robert T wrote:There are two possibilities here. 1) The headunit is not connected to the remote control wire that turns on the amp or 2) the amp is not working, possibly due to a failed relay.

If the headunit is not original, then the wiring may never have been correct. When I replaced my headunit, I had connect an additional wire labelled remote control, which turns on the remote amp. This is on all the time the the headunit is on, not to be confused with the aerial remote which is only on when the headunit is switched to radio, as it is designed to operate a retractable aerial.

There are a couple of threads on here about replacing the relay and making up a bypass for the amp without butchering the wiring loom.

Bypass: http://www.zroadster.net/forum/viewtopi ... =amplifier

Relay: http://www.zroadster.net/forum/viewtopi ... ight=relay

Cheers R.

A million thanks Robert, that is a spot on pointer

I suspected the relay and it would appear to be a common failure - so off to maplins and try and dust up on my soldering skills

Will let you kow the result

Regards Gordon
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Gordon13
Joined: Tue 16 Sep, 2014 19:45
Posts: 58

  Z3 roadster 2.2i

Re: Front speakers dont work

Post by Gordon13 » Tue 14 Jul, 2015 21:02

And the result is a fully working sound system :D

A very big thanks to Robert for the info. Maplins do the relay -JM67x - for the princely sum of £1.99 and its a doddle to fit - about half and hour all up.

Now all we need is some sunshine so I can use it !
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Robert T
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Joined: Mon 12 Jun, 2006 11:35
Posts: 9984

  Z3 roadster 1.9
Location: Cheshire

Re: Front speakers dont work

Post by Robert T » Tue 14 Jul, 2015 21:48

No worries, Gordon. Glad to be of assistance, even if only as a search engine! :lol:

Cheers R.
Arctic Silver '99 Z3 1.9 & Black '59 Frogeye 1275cc
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