I just bought a 2008 Mazda 3 S Grand Touring with the 6 speaker BOSE system. Whenever I try to use the AUX input to play my iPhone the bass frequency drops in and out when I start driving. I have tested it with the ALC on and off and it happens regardless. The bass frequency pops back in whenever I hit the volume control or any other button but then will eventually drop back out. This does not happen, however when I am just listening to the regular radio. I know there have been numerous posts with similar problems , but mine only drops in and out when I'm using my AUX input.

Does anyone else have this problem? Anyone have an ideas on how to help? IS there a service bulletin for this? I'm very confused and frustrated with this. Please help friends!

Nic D

 

does it happen only when you have the setting to 35 or above?

if so might be this 2008.5 Headunit TSB Bose and none Bose - Mazdaspeed Forums (sorry bout the cross forum link - dont know if thats cool or not)

I have this too but never got around to getting it fixed

 

I would first check the cord you are using, sounds like a short.

 

This is happening at all volume levels. Also I have tried a couple different cords for it as well. Just seems to happen also only when I'm moving. Thank you for your replies.

 

upon further review, it looks like its only happening at level 35 or higher. You were right. Is this a simple software upgrade?

 

unfortunately no it seems like the TSB i posted a link to above involves a refit of the stereo that they will do under warranty... I am now out of warranty and never got it done - jsut going to live with it and clean my ears out more often so i don't need it that loud - I am getting old anyway so am beginning to favour my sounds at a lower volume lol