Problem with the front speakers

G.Grozdev · 10-12-2023, 03:39 AM

Hello guys, a year ago I bayed a e90 2005 with CCC navigation and standard audio system. Since I got the car the front speakers at the door and under the seats are not working. The only sound I can hear is from the back of the car. I open the door panel everything is connected, the speakers are working, but they don't receive signal, checked the cables between the doors and the coupe cables are connected Can you give me some advice where the problem can be. The other think I notice is that my MULF module is missing, can that have some connection?

ptpending · 10-12-2023, 05:11 AM

do you have tweeters in front doors ?

G.Grozdev · 10-12-2023, 05:18 AM

Quote:

Originally Posted by ptpending

do you have tweeters in front doors ?

Yes sir!

ptpending · 10-12-2023, 05:23 AM

Quote:

Originally Posted by G.Grozdev

Yes sir!

so you either have Hifi or Top-hifi amplifier in boot, behind the left rear arch
it is often can be damaged by water
you have to check it

G.Grozdev · 10-12-2023, 05:31 AM

Quote:

Originally Posted by ptpending

so you either have Hifi or Top-hifi amplifier in boot, behind the left rear arch
it is often can be damaged by water
you have to check it

Well i check there but the only unite i got is the CD changer and nothing more.

ptpending · 10-12-2023, 08:37 AM

Quote:

Originally Posted by G.Grozdev

Well i check there but the only unite i got is the CD changer and nothing more.

ok, the amp (if installed) is under CD changer, so you have to remove whole trim, or you can remove rear light cover and look thru it
decode your car full VIN at mdecoder.com or other similar site to check if you have hifi or top hifi

ctuna · 10-12-2023, 01:35 PM

Run mdecoder.com on your Vin
676 option = hi fi
677 or 688= Top Hi Fi aka Logic 7
none = base system

G.Grozdev · 10-21-2023, 04:43 AM

I check it its base system. Maybe the previous owner install tweeters in front doors.

10-12-2023, 03:39 AM	#1
G.Grozdev Registered 0 Rep 4 Posts Drives: BMW e90 Join Date: Oct 2023 Location: Bulgaria iTrader: (0)	Problem with the front speakers Hello guys, a year ago I bayed a e90 2005 with CCC navigation and standard audio system. Since I got the car the front speakers at the door and under the seats are not working. The only sound I can hear is from the back of the car. I open the door panel everything is connected, the speakers are working, but they don't receive signal, checked the cables between the doors and the coupe cables are connected Can you give me some advice where the problem can be. The other think I notice is that my MULF module is missing, can that have some connection? Last edited by G.Grozdev; 10-12-2023 at 03:45 AM..
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10-12-2023, 05:11 AM	#2
ptpending Colonel 466 Rep 2,781 Posts Drives: e91 Join Date: Dec 2013 Location: Poland iTrader: (1)	do you have tweeters in front doors ? __________________ E81 2007 130i 6cylinder Montego blue Retrofits: Harman Kardon, High-beam assistant, Removable tow hitch. Auto-dim folding exterior mirrors. Lumbar support. Perfomance Brakes.
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10-12-2023, 01:35 PM	#7
ctuna Lieutenant General 1926 Rep 13,134 Posts Drives: 325xi 06 wagon MT Join Date: Jan 2010 Location: Santa Cruz, Ca iTrader: (0)	Run mdecoder.com on your Vin 676 option = hi fi 677 or 688= Top Hi Fi aka Logic 7 none = base system
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10-21-2023, 04:43 AM	#8
G.Grozdev Registered 0 Rep 4 Posts Drives: BMW e90 Join Date: Oct 2023 Location: Bulgaria iTrader: (0)	I check it its base system. Maybe the previous owner install tweeters in front doors.
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