All of a sudden my entire audio system went from sounding amazing to complete crap. I checked to make sure everything was securely hooked to the amp, all good..I have the GROM hooked up and I believe I have the premium package. Advice to troubleshoot? All speakers sound like they are blown. Thanks!
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Audio Sounds Like Crap!
- Thread starter stal023
- Start date
Southwestz4
Member
Sounds like the amp has given up ?
Southwestz4
Member
I don't have the standard Bmw amp in mine so not sure on those connectors but they don't look like audio ones ? ... speaking from my stage audio work ...either the head unit is giving out bad signal or amp is corrupting the output ... very unlikely that all speakers are blown .... hopefully someone else on here will have more info on the system you have 
https://cdn4.pelicanparts.com/techarticles/BMW_Z4M/151-ELEC-Radio_Amplifier_Telematics_Module_Replacement/images_small/pic09.jpg
Didn't realize the actual amp has a fuse, which seems a bit odd since there is a location in the fuse box for this. Guess I will take the amp out to confirm this afternoon.
Didn't realize the actual amp has a fuse, which seems a bit odd since there is a location in the fuse box for this. Guess I will take the amp out to confirm this afternoon.
Southwestz4
Member
Good luck ! ... I just have a active under seat sub to help the standard 6 speaker system out on lower frequencies, plus I fitted to Harmon kardon mids in the door beind the standard grills as there was no speakers there
Southwestz4
Member
Don't blame you , I'm sure there are some aftermarket solutions out there ...try ...
https://www.dynamicsounds.co.uk/
https://www.dynamicsounds.co.uk/
stal023 said:
Indeed it does have a fuse on it, just exactly the same as this photo but I've not seen a fuse like this one, it isn't see through to be able to easily inspect if it is blown. Trick to one that isn't see through? Appears the top can be removed to access the metal "pins" to be able to put a auto light to test it that way??
Southwestz4
Member
Yes I always pull the negative lead off if working on the electrical stuff
Okay I tested the fuse on the amp. It's good. I then took the head unit out and tested that fuse. It was good. All connections were secure. I then light tested every single fuse in the fuse box and got one that didn't work, #32 which says it's for the SMOG manual gearbox (which I don't have, mine is a manual).
I then put on music with heavier bass and got next to each speaker. The subs in the back actually sound okay and so do the speakers that are in the front near the floor. The rest sound so horribly bad.
A new amp is $1500. Is there a way to test the amp and/or speakers to figure out which route to go?? Really appreciate the help everyone.
I then put on music with heavier bass and got next to each speaker. The subs in the back actually sound okay and so do the speakers that are in the front near the floor. The rest sound so horribly bad.
A new amp is $1500. Is there a way to test the amp and/or speakers to figure out which route to go?? Really appreciate the help everyone.
Southwestz4
Member
Sounds like the head unit may have lost mid/high output ? Not sure if these frequencies are run through the amp too ? , do you have a spare speaker or two that you could temporarily connect to the mids in the door to check/eliminate speaker faults ?
I thought about trying to hook up a speaker to test that way BUT I realized I hadn't checked my sound on anything but bluetooth and the radio sounds just fine. The only thing I need to test is the CD player (I need to find a CD!) So fingers crossed, this isn't the amp and it is actually the GROM unit that went to crap. In that case, I might be looking into new bluetooth options as I believe this GROM unit is pretty new. (Previous owner installed it)
