BMW Z3

Workshop
REPLACEMENT Third Party Radio and GPS
01.07.18       It has not been my week this week, even with all the precautions of adding inline fuses, and yet still managed  to blow the new radio. Manufacturers have placed a too higher fuse within the unit as it hadn't blown. Even before the burn out, the GPS and the car speakers were not working, I did have to put an independent speaker direct to the radio wiring and this did work, so somewhere along the mass of custom wires there was a problem either with the radio itself or the wiring circuit/loom. On plugging the adapter back into the car loom is where everything decided to go 'tits-up', to coin a phrase. The plug-in unit seems to work to a fashion as one can turn off the ignition and the radio did go off. Back on, when the ignition turned on, as with the specified wiring diagram. The problem seemed to arise when trying to attach the speakers. Somewhere on route one can guess the wrong speaker wires were earthing.  One could use a meter to identify the problem source, however at the time I preferred to thread new wires to the appropriate speakers and to the new unit. I would know in my own mind the wiring was safe with the radio at least. The previous owners obviously didn't consider the wiring  when they compiled these custom looms or even place labels on them, this would have been useful. The custom looms, out of this world, (a makeshift on a scrapyard challenge) the connections were for  links to computer and phone connectors, it makes me wonder if any of it worked or if the previous installer was an amateur and unaware of auto colour coding? So it looks like a  new radio wiring system,  utilising the bits that work, one can assume the speakers have also been rerouted in some way..... today is disappointing and heat is fetching at least 30C, too hot to work in and I've called it a day. The whole wiring system will need to be investigated and made safe.
Package Included:                                                                                       
1 X Bluetooth Car Stereo player
1 X GPS Module    
1 X 8GB Map Micro SD Card
1 X 8IR Rear Camera
1 X Remote control
1 X User manual
1 X Wire

NO GOOD IF IT BLOWS
N/S Footwell Speaker
Circuitboard attached to the Nearside Speaker
Speaker rests
on here and
screwed to this
plate
Held in with 4 screw bolts
updated 26.04.19: Includes replaced centre console and USB Ports/Volt Meter
OEM AMP
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Note: One recommends reading the diary first and then linking to workshop notes to maintain the continuity of the theme...
See Purchase Note Pages [5a] [5aa]  [5bb]& [5b] [5c]
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Ideal Screen Composition 1680x1050
5.25"  (13cm) front Speakers
Courtesy Zroadster.org re- Zixel/Eddie Zedder (Zorg Guru)
Courtesy Zroadster.org re- Zixel/Eddie Zedder (Zorg Guru)
(NGW)
(NGW)
08.06.24 - I decided to have a quick look at the rear audio speakers behind the driver and passenger seats, pre-amp installation, one assumed they would be the same sizes as the footwell speakers, nope! Not that simple. The front footwell speakers are 5 1/4"  or 13.33cm, the rear's are 3 3/4"  or 9.5cm. (after using a tape measure). I am hoping the 5 1/4"(9.5cm) will fit... (Speaker sizes seem to be rounded off to the nearest inch or cm - I hope the car manufacturers have taken this into account...)
Actual
Actual
Actual
Actual
Try looking for a reference for this amplifier and speaker combination and you will have some difficulty, unless you have one installed, plus a camera available. I found this image (ref below) also giving the BMW Wire Colour Coding - nice!