Bongo Fury

Hi guys,
I fitted an original rear speaker a while back which subsequently failed. Unfortunately I didn't have any wiring to the offside so installed my own however I wonder whether I got the positive/negative the wrong way round leading to the failure...

I have a replacement now but short of removing my side conversion to look at the connector on the nearside speaker I don't know which way round the connector should be wired since there are no markings on the speaker itself... does anyone know offhand which is the positive terminal on the original speaker connector ? Is it the one closest to the front of the speaker (perpendicular to the speaker) or the one closest to the magnet/rear of the speaker (inline with the face of the speaker)


not sure if this helps...but the |- is the socket on the speaker !

Magnet/Rear |- Face


thanks,
Ant.

Recently changed my rear speakers & I've got the info scribbled on a bit of paper somewhere. Do a search for speaker AND wiring & it should come up with a link to Geoff's excellent wiring diagrams from where you can figure out + & -.

BTW, you can't blow a speaker by connecting it wrong way round as it's an AC signal, but you can get it out of phase with the others so the cone will be moving out while the others are moving in which results in an unbalanced & 'thin' sound.

Speakers themselves are not polarity concious so you can't do any damage to the speaker itself by reversing the connections.
However if you do reverse them you may find that the bass response when combined with the stereo speaker opposite might be reduced within the van, both speakers need to be connected the same way to get the best bass response.

Wiring and colours listed above click into the image for the full diagrams.

blimey that was quick ! thanks !

Didn't even cross my mind to look at the wiring manual to see if the connector was detailed !

Mines a '95 so looking at http://www.g8dhe.net/bwm/bwmanualp.htm?1995/Page_104

and using http://pinouts.ru/CarAudio/car_audio_iso.shtml

I think I need ISO B1/B2 for Rear Right which is J1-08 and therefore White for one, and Green/Orange for the other (colouring matches your '97 version on same ISO connector but J1-06...so I rekon I'm sorted) Interesting the '97 manual you don't need to read japanese

not that it matters but for completeness of this thread...looks like B2 is White and should therefore be -ve.

many thanks guys, much appreciated.

Ant.

Resurrecting this thread.....

I'm in the process of upgrading the rear speakers and sorting out snapped panel clips etc. in the back, but wanted to double check I've wired the + and - correctly before I put it all back together. The diagram very kindly posted suggests that the + ve for the right rear speaker is green orange and the - ve is white.

It sounds okay wired like this, but it also sounds okay wired the other way around (although it's not really a fair test until I put it all back together I guess).

Can anybody confirm for the left rear and right rear speakers please?

Many thanks.

Dom

As mentioned earlier wiring a speaker the wrong way won't do any damage.

Play a nice bassy dance track and stick your head between the 2 speakers (Fade out the fronts/rears as required), so you can hear them in stereo. Have a listen and switch the cables and have another listen, or find a pal to switch the cables as you listen.

You should be able to hear the difference, lack of bass means you have a speaker wired in reverse, out of phase with the other one.

All it means is the speaker cone, the cardboard, will be pushing out on one as it pull in on the other causing the waves to be out of phase and not providing as much ooomph.

Thanks. I'm aware that it won't cause damage connecting the wrong way around. I think I've got it correct (white being negative), but it's difficult to establish with the panels off since the bass isn't as clear as it would be with them on. I've listened to music with a lot of bass with the one new speaker (with the panel off whilst I install it) and one old (with the panel on).

With the rate the plastic clips are breaking, the last thing I want to do is put the panel back on and find it's wired incorrectly!

Incidentally, the plastic clips are a pain. Our Bongo came with a panel loose due to broken clips, so I'm trying to fix those with L section aluminium as I go.