No sound coming from speakers F82 M4

BMWM4John · 06-23-2018, 04:10 PM

So I am currently getting no audio for radio, media, chimes, nav etc. No codes are present. I checked all the fuses and #123 (Radio fuse) was burned out. I'm like ok simple replace fuse which is a 40amp. It pops everyone of them I install. Bad amp or sending unit I'm guessing? Any help or info would be great. The factory amp is $1500. Anyone have a used one or AM that would work?

Thanks!!

IK6SPEED · 06-24-2018, 12:55 AM

Quote:

Originally Posted by BMWM4John

So I am currently getting no audio for radio, media, chimes, nav etc. No codes are present. I checked all the fuses and #123 (Radio fuse) was burned out. I'm like ok simple replace fuse which is a 40amp. It pops everyone of them I install. Bad amp or sending unit I'm guessing? Any help or info would be great. The factory amp is $1500. Anyone have a used one or AM that would work?

Thanks!!

You need to determine if amp is bad or you have a short to ground.

BMWM4John · 06-24-2018, 08:19 AM

Quote:

Originally Posted by IK6SPEED

Quote:

Originally Posted by BMWM4John

So I am currently getting no audio for radio, media, chimes, nav etc. No codes are present. I checked all the fuses and #123 (Radio fuse) was burned out. I'm like ok simple replace fuse which is a 40amp. It pops everyone of them I install. Bad amp or sending unit I'm guessing? Any help or info would be great. The factory amp is $1500. Anyone have a used one or AM that would work?

Thanks!!

You need to determine if amp is bad or you have a short to ground.

Curious never had an issue like this. How could I check the amp? And steps to ground a short?

IK6SPEED · 06-24-2018, 12:28 PM

Quote:

Originally Posted by BMWM4John

Curious never had an issue like this. How could I check the amp? And steps to ground a short?

Off the top of my head, Unplug connections to amp and put in new fuse.

If it blows you have a short to ground in wiring somewhere along the path (unlikely unless you installed or did something that caused this).

If not, it would appear to be amp is the issue.

Atleast you would narrow it down.

guess2098 · 06-24-2018, 12:31 PM

Do you get NO WARNING TONE message when you turn on the car.

This message ONLY appears once and no where can find again. No fault code will stored

BMWM4John · 06-24-2018, 12:38 PM

Quote:

Originally Posted by IK6SPEED

Quote:

Originally Posted by BMWM4John

Curious never had an issue like this. How could I check the amp? And steps to ground a short?

Off the top of my head, Unplug connections to amp and put in new fuse.

If it blows you have a short to ground in wiring somewhere along the path (unlikely unless you installed or did something that caused this).

If not, it would appear to be amp is the issue.

Atleast you would narrow it down.

Ok I'll try that and report back

BMWM4John · 06-24-2018, 12:42 PM

Quote:

Originally Posted by guess2098

Do you get NO WARNING TONE message when you turn on the car.

This message ONLY appears once and no where can find again. No fault code will stored

No warning tones, chimes, sound period. Put a CD in, turned Bluetooth on and off, radio, satellite radio.

BMWM4John · 06-24-2018, 12:43 PM

Quote:

Originally Posted by BMWM4John

Quote:

Originally Posted by guess2098

Do you get NO WARNING TONE message when you turn on the car.

This message ONLY appears once and no where can find again. No fault code will stored

No warning tones, chimes, sound period. Put a CD in, turned Bluetooth on and off, radio, satellite radio.

No warning tone either

IK6SPEED · 06-24-2018, 12:46 PM

Btw, you have a 2015 car. It should be under warranty.

Why not simply take to Dealer?

BMWM4John · 06-24-2018, 12:48 PM

Quote:

Originally Posted by IK6SPEED

Btw, you have a 2015 car. It should be under warranty.

Why not simply take to Dealer?

Just turned 60k miles unfortunately

guess2098 · 06-24-2018, 12:53 PM

If you get NO WARNING TONE message when you turn on the car, most likely you have bad AMP.

BMWM4John · 06-24-2018, 12:55 PM

Quote:

Originally Posted by guess2098

If you get NO WARNING TONE message when you turn on the car, most likely you have bad AMP.

Good to know.

BMWM4John · 06-24-2018, 12:58 PM

Quote:

Originally Posted by BMWM4John

Quote:

Originally Posted by guess2098

If you get NO WARNING TONE message when you turn on the car, most likely you have bad AMP.

Good to know.

The amp is located on the driver side trunk correct? Under the plastic cover? What is the box in the middle trunk behind the rear seats sending unit?

guess2098 · 06-24-2018, 01:14 PM

Quote:

Originally Posted by BMWM4John

Quote:

Originally Posted by BMWM4John

Quote:

Originally Posted by guess2098

If you get NO WARNING TONE message when you turn on the car, most likely you have bad AMP.

Good to know.

The amp is located on the driver side trunk correct? Under the plastic cover? What is the box in the middle trunk behind the rear seats sending unit?

I don't know the location of amp

IK6SPEED · 06-24-2018, 11:54 PM

Quote:

Originally Posted by BMWM4John

The amp is located on the driver side trunk correct? Under the plastic cover? What is the box in the middle trunk behind the rear seats sending unit?

Left rear.

A52*4B is the 2 pin wire you need to pull to disconnect power, not to be confused with the 2 pin A52*2B

BMWM4John · 06-25-2018, 02:02 PM

Quote:

Originally Posted by IK6SPEED

Quote:

Originally Posted by BMWM4John

The amp is located on the driver side trunk correct? Under the plastic cover? What is the box in the middle trunk behind the rear seats sending unit?

Left rear.

A52*4B is the 2 pin wire you need to pull to disconnect power, not to be confused with the 2 pin A52*2B

Thank you!

Thescout13 · 06-25-2018, 06:54 PM

Had this happen to me on my old e92 335i, ended up being a blown module and not the amp or speakers. BMW will charge you $250 to "diagnose" it. Will spend 5 minutes reinitiating your module with their coding module, and then will charge you 1.5 hours of labor. See if a local Indy shop can do it. If not, you may be SOL and have to cave like I did.

IK6SPEED · 06-25-2018, 11:19 PM

Quote:

Originally Posted by Thescout13

Had this happen to me on my old e92 335i, ended up being a blown module and not the amp or speakers. BMW will charge you $250 to "diagnose" it. Will spend 5 minutes reinitiating your module with their coding module, and then will charge you 1.5 hours of labor. See if a local Indy shop can do it. If not, you may be SOL and have to cave like I did.

Try finding a short to ground in the KCAN wiring if you want to see a diagnostic charge, with the KCAN network running throughout the entire car.

BMWM4John · 06-29-2018, 12:44 PM

Quote:

Originally Posted by IK6SPEED

Quote:

Originally Posted by Thescout13

Had this happen to me on my old e92 335i, ended up being a blown module and not the amp or speakers. BMW will charge you $250 to "diagnose" it. Will spend 5 minutes reinitiating your module with their coding module, and then will charge you 1.5 hours of labor. See if a local Indy shop can do it. If not, you may be SOL and have to cave like I did.

Try finding a short to ground in the KCAN wiring if you want to see a diagnostic charge, with the KCAN network running throughout the entire car.

So I unplugged everything installed new fuse. Hooked battery back up. Fuse did not blow untill I plugged in amp?

IK6SPEED · 06-29-2018, 05:20 PM

Quote:

Originally Posted by BMWM4John

So I unplugged everything installed new fuse. Hooked battery back up. Fuse did not blow untill I plugged in amp?

Then you know where the issue is.

BMWM4John · 06-29-2018, 05:21 PM

Quote:

Originally Posted by IK6SPEED

Quote:

Originally Posted by BMWM4John

So I unplugged everything installed new fuse. Hooked battery back up. Fuse did not blow untill I plugged in amp?

Then you know where the issue is.

Ordering the Amp today

IK6SPEED · 06-29-2018, 05:23 PM

Quote:

Originally Posted by BMWM4John

Ordering the Amp today

HK or HIFI?

Where are ordering from?

Make sure they have a return policy, just incase.

Lack of timely response going to cost you big time.

06-23-2018, 04:10 PM	#1
BMWM4John Private 13 Rep 88 Posts Drives: 2015 BMW M4 Join Date: Sep 2016 Location: Texas iTrader: (0)	No sound coming from speakers F82 M4 So I am currently getting no audio for radio, media, chimes, nav etc. No codes are present. I checked all the fuses and #123 (Radio fuse) was burned out. I'm like ok simple replace fuse which is a 40amp. It pops everyone of them I install. Bad amp or sending unit I'm guessing? Any help or info would be great. The factory amp is $1500. Anyone have a used one or AM that would work? Thanks!! __________________ __________________ 2011 BMW E92 M3 Alpine White DCT Past BMWs: F82 M4 BS DCT, 1994 E36 DINAN3 SC 325is Gray, 2 1995 E36 M3 Black and Dakar Yellow , E46 M3 Silver 6spd, E90 335i Black Sapphire
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06-24-2018, 12:31 PM	#5
guess2098 Major 516 Rep 1,247 Posts Drives: 2022 Taycan GTS, 2018 M4, 2016 Join Date: May 2009 Location: Rowland Heights, CA iTrader: (5)	Do you get NO WARNING TONE message when you turn on the car. This message ONLY appears once and no where can find again. No fault code will stored
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06-24-2018, 12:46 PM	#9
IK6SPEED Banned 4486 Rep 10,473 Posts Drives: BMW M3 / AH3 Join Date: Jan 2013 Location: Cali iTrader: (23)	Btw, you have a 2015 car. It should be under warranty. Why not simply take to Dealer?
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06-24-2018, 12:53 PM	#11
guess2098 Major 516 Rep 1,247 Posts Drives: 2022 Taycan GTS, 2018 M4, 2016 Join Date: May 2009 Location: Rowland Heights, CA iTrader: (5)	If you get NO WARNING TONE message when you turn on the car, most likely you have bad AMP. Attached Images
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06-25-2018, 06:54 PM	#17
Thescout13 Brigadier General 4944 Rep 4,976 Posts Drives: '20 F80 M3CS, %E2%80%9818 GT3 Join Date: Nov 2013 Location: California iTrader: (0)	Had this happen to me on my old e92 335i, ended up being a blown module and not the amp or speakers. BMW will charge you $250 to "diagnose" it. Will spend 5 minutes reinitiating your module with their coding module, and then will charge you 1.5 hours of labor. See if a local Indy shop can do it. If not, you may be SOL and have to cave like I did. __________________ Wife's Car: 2020 X4M Competition, Alpine White on Black Alcantara and Biege Current Car: 2018 F80 M3CS, SMB, DCT, ZEC, MPE Recently Departed: 2020 F87 M2C, LBB, ZEC, 6MT (Euro Delivery Aug. 29, 2019, totaled by an idiot in a Camry who then ran from the scene) Wife's Prior Car: 2018 F80 M3, Yas Marina Blue, DCT, Black 19s, Carbon Structure Anthracite Cloth/Leather Combination, Driving Assistance Package (Euro Delivery Oct. 9, 2017)
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