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 > Car Audio, SYNC, MyFord Touch & Electronics > Aftermarket Deck W/ Stock SVT Sub Wiring (Re-visited)

Car Audio, SYNC, MyFord Touch & Electronics The Forum for the Ford Focus audiophiles. The place to chat about automobile sound systems, security systems, or show off your I.C.E.!
Sponsored By: GT Sound Control


Search This Forum | Image Search | Advanced Search    
FocusFest

Thread: Aftermarket Deck W/ Stock SVT Sub Wiring (Re-visited) Reply to Thread
Title:
  
Message:
Trackback:
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:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
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
Name
Your real name.
City
State
Country
Insurance
Please select your insurance company (Optional)

Log-in

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)
10-06-2015 10:54 PM
firebirdude Figured I'd post up in here because I saw some people asking about the Ford amp turn-on voltage pop issue. Yeah, it's been awhile. But someone may be reading this in the future.

Just like some of the earlier posts have said, you need to cut that 12V remote turn-on voltage in half (the Ford amp actually looks for 5V, but 6V is plenty close enough). You can do this a couple different ways.

1) A transistor/voltage regulator can be had from an electronics store for a buck or two. Usually just three connections. Voltage in, voltage out and ground. There's many different regulator numbers that would work for this. You'll have to hop into your local shop and ask someone. The L7806CV works perfectly, but will require a soldering iron and a little skill.

2) A single resistor in-line the remote wire. This doesn't actually reduce the voltage at all. It reduces the large current spike when the amp kicks on/off. If the resistance is high enough, it will usually work well enough to make the pop inaudible. I recommend 3k ohm or above.

3) The final method is a voltage dividing network. It's just two resistors of the same value oriented in such a way that half the voltage is shunted to ground and half to the amp. This truly reduces the voltage presented to the factory amp and is recommended over option #2 above.

So for example, you could use two 3k ohm resistors (or 2k or 4k or 5k, it doesn't matter). Vin is the blue/white remote turn-on wire from your new head unit. Vout is the factory amp turn-on connection. The symbol at the bottom is ground. Yes you can just tie right into the ground you used to wire up the new head unit. And obviously soldering these connections together is highly recommended. Insulating them with tape/heat shrink is a must.

I have personally used all 3 options many many times in many different Fords. They all work.
10-06-2015 02:56 PM
loud519 Thank god I found this!!! I was freaking out when I lost my subwoofer! Sounds great!
08-02-2015 12:25 PM
Jstgilstrap Just a head unit. I figured it out. the connectors I was using to connect the amp + and - where not making a good connection on the rca. soldered on some bigger wire and the connectors where able to make a good connection and it works.
08-01-2015 04:40 PM
kwg2371
Quote:
Originally Posted by Jstgilstrap View Post
Opening up a dead topic. So i got the same humming that some of you got but I did not see a fix for it.

Any tips?
did you install just a head unit or a full stereo system?
08-01-2015 01:43 PM
Jstgilstrap Opening up a dead topic. So i got the same humming that some of you got but I did not see a fix for it.

Any tips?
12-28-2014 04:25 AM
kwg2371
Quote:
Originally Posted by fordguy85 View Post
I just got my SVTF 4 months ago and was getting around to doing this. I finally did it today and it works great! Only thing is that I cut the wrong white/black wire and was getting a humming sound when connecting the sub. When I realized my mistake and used the right white/black wire, all was good. I mounted a Kenwood KDC-BT755HD HU if anyone would like to know. Thanks for the write up!
glad i could help
12-27-2014 12:05 PM
fordguy85
Got Around To Wiring My Sub As Indicated Here!

I just got my SVTF 4 months ago and was getting around to doing this. I finally did it today and it works great! Only thing is that I cut the wrong white/black wire and was getting a humming sound when connecting the sub. When I realized my mistake and used the right white/black wire, all was good. I mounted a Kenwood KDC-BT755HD HU if anyone would like to know. Thanks for the write up!
09-18-2013 03:59 PM
twiggss in for later
08-01-2013 06:45 PM
kwg2371 bump for the newbs
10-28-2012 07:34 PM
rdaex Ill be doing this soon, just picked up the Pioneer DEH4400HD for 68 bucks!!
This thread has more than 10 replies. Click here to review the whole thread.

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 07:24 AM.


Copyright 2002-2015 FocusFanatics.com. 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 ATS Forum, Cadillac CTS-V Forum, Lexus RC-F Forum, Lexus GS-F Forum, Mercedes GLA Forum, Mercedes GLE Forum, Civic Type-R Forum and Volvo XC90 Forum.




 

Search Engine Optimization by vBSEO 3.6.1