Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum - Reply to Topic
Ford Focus Forum
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace

Go Back   Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum > Ford Focus Tech Discussions > General Technical Chat > Battery Drain - Sony System

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    

Thread: Battery Drain - Sony System Reply to Thread
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:

Register Now

In order to be able to post messages on the Ford Focus Forum, Ford Focus ST Forum, Ford Focus RS Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
What I Drive
Year, color, and model of your car. Example: 2003 Pitch Black ZX3
Your real name.
Please select your insurance company (Optional)


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Additional Options
Miscellaneous Options

Topic Review (Newest First)
11-18-2012 06:35 PM
Battery Drain - Sony System

Hi All - Quite new here to the forum.

I've owned my '05 ST for quite a few years now. Pretty reliable I must say.
There once was an issue with my battery draining. I'd say it was quite annoying.
(Good thing I have my ole reliable '91 Ranger as a back up)

I did some searching a few years ago, and discovered that the Sony Sub Woofer in the trunk was the culprit of the draining battery issue.

I disconnected the plug from the sub woofer amp.
That... solved my problem. I never tried to investigate it further.
I can live without it. Maybe there is a bad diode in the unit?
Seems like I'm not the only one that has/had this problem.

Disconnecting this did not effect my cars performance... The radio, CD player etc all still works just fine through the 4 Sony speakers.

Boy - That WAS annoying when I think about it...

I have over 180k miles on my car. Not bad for an '05

Simple maintenance and listening to the car is what keeps it going.
I purchased an OBD-II code reader (little orange one) for troubleshooting.
Its handy - cheap - and a wonderful tool to have - Not just for Fords, but, for any vehicle. I also have the ODB-I for older vehicles.

Things I've replaced:

Oil / Oil Filter - often
Air Cleaner (Replaced with CAI Cleanable Filter- SWEET!)
Head Light Lamp (Drivers side one time)
Um, that's about it...

Oh, and I was racing once up a mountain and the connecting rod bearing went... I just replaced the whole engine...

Oh, and then, there was that time last year when I was a bit angry and had the music up too loud? and forgot to shift from 3rd to 4th... and did the same thing... so... I've replaced the engine twice...
Yes... Road Rage Red is the color I call it road rage red anyway. LoL
I'm happy as long as no one is in front of me... LoL!

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -5. The time now is 11:15 PM.

Copyright 2002-2015 All Rights Reserved : Privacy Policy : Advertise Information

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Mazda CX-3, Audi S3, Mazda MX-5 Miata and Acura TLX. You can find all Ford Focus, Focus ST and Focus RS related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area. If you own other makes have a look at Challenger Hellcat Forum, Charger Hellcat Forum, Cadillac ATS-V Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum and Volvo XC90 Forum.


Search Engine Optimization by vBSEO 3.6.1