Go Back   F150online Forums > Audio & Video System > Amplifiers
Sign in using an external account
Register Forgot Password?
Register Photos Vin Decoder FAQ Members Search Today's Posts Mark Forums Read VendorsGarage




Reply
 
 
 
 
Thread Tools Search this Thread Display Modes
  #1  
Old 01-05-2011, 02:37 PM
Senior Member
2007 Chevrolet TrailBlazer
My Garage
 
Join Date: May 2010
Location: Gulfport, MS
Vehicle: 2000 Ford F150
Posts: 748
pranKst0r
Where did you run your power cable?

Alrighty all, I am going to run my power wire from battery to the amp tonight and I was trying to find out where everyone ran their cable to get inside the cab from the engine bay? I'd rather not drill if i can get away with it. Pics would be awesome Thanks for any help
Reply With Quote
  #2  
Old 01-05-2011, 03:05 PM
Senior Member
Garage is empty, add now
 
Join Date: Jan 2010
Location: Lubbock, TX
Vehicle: 2007 Ford F150
Posts: 324
No pic but I ran mine through an existing grommet in the firewall. The grommet is just inboard from the battery about halfway down the firewall. It took some finagling to get the cable past the deadening/heat barrier in the cab and up around the HVAC plenum, but it puts the cable in exactly the right place to drop it down into the wiring channel in the door sill.

Brad
__________________
• 2007 F150 SuperCrew 5.4L 2wd w/Trailering Package (3.55 LSD)
• 2.5" cat-back true duals. Magnaflow DIDO muffler with integrated X-pipe
• Cold air intake mod
• Interior map and dome light LED conversion
• Pioneer DEH-P4100UB H/U mounted with an American International dash kit
• Crossfire 705D amp
• Pioneer TS-D6802R door speakers
• Image Dynamics ID10D2 sub in an Atrend A371-10CP downfire box.
Reply With Quote
  #3  
Old 01-05-2011, 03:31 PM
Senior Member
2007 Chevrolet TrailBlazer
My Garage
 
Join Date: May 2010
Location: Gulfport, MS
Vehicle: 2000 Ford F150
Posts: 748
pranKst0r
Good deal thanks man
__________________
2000 SCab F-150 4x4

2007 TrailBlazer SS

2003 Mustang Mach 1 - FOR SALE!!

2007 SCrew Harley-Davidson - SOLD
Reply With Quote
  #4  
Old 01-06-2011, 04:21 AM
Senior Member
Garage is empty, add now
 
Join Date: Apr 2007
Location: Slidell, LA
Vehicle: 2007 Ford F150
Posts: 4,494
Look you've made a few posts here, do us a favor and search next time. There's about 30+ threads on wire location. I'm not trying to be a jerk but more as a heads up before someone really rips you a new one. Thanks bro.

Also there's many people who go underneath the cab to a grommet underneath the rear door sill. I prefer there much easier for larger wire.
__________________

SPL is one note... SQ is a flat 20-20.

If ported, always tune to CRF 33Hz... aka the Golden Number

Quote:
Originally Posted by Odin's Wrath View Post
Eye-humping: One advantage of dating a girl with a glass eye.
PLEASE DO NOT PM ME. EMAIL ME INSTEAD (the email form for me is found by clicking on my name at the top of the post.)

Anyone hiring?!?!? Fired(og) Installer
Reply With Quote
  #5  
Old 01-06-2011, 06:27 AM
Senior Member
2008 Ford F-150
 
Join Date: Jan 2010
Location: Brecksville, Ohio
Vehicle: 2008 Ford F150
Posts: 1,228
I ran mine through the rear door sill grommet also.
__________________
Reply With Quote
  #6  
Old 01-06-2011, 11:08 AM
Technical Article Contributor
2005 Ford F-150
 
Join Date: May 2007
Location: St. Louis, MO
Vehicle: 2005 Ford F150
Posts: 1,219
I'm new to the whole amp, speakers, sub deal. I have read that wherever you run your power wire, you want to avoid running any other wires near it for the fact of interruptions. If i was to run the wire outside the cab and up into the cab near the amp on the back wall, would I run into any issues with running rcas under the door sill on this same side?

What I'm doing is hooking up an amp and a 10" sub. I will be mounting the amp in the current jack location for ease of access. So, if I could avoid having to run the wires down the driver side it would be easier on me, but not really a huge issues if I have to.
__________________
Reply With Quote
  #7  
Old 01-06-2011, 11:42 AM
Senior Member
2007 Chevrolet TrailBlazer
My Garage
 
Join Date: May 2010
Location: Gulfport, MS
Vehicle: 2000 Ford F150
Posts: 748
pranKst0r
I personally would not run the RCA's on the same side as the power cable. The remote won't matter if you run it with the power.
__________________
2000 SCab F-150 4x4

2007 TrailBlazer SS

2003 Mustang Mach 1 - FOR SALE!!

2007 SCrew Harley-Davidson - SOLD
Reply With Quote
  #8  
Old 01-06-2011, 11:45 AM
Senior Member
Garage is empty, add now
 
Join Date: Apr 2007
Location: Slidell, LA
Vehicle: 2007 Ford F150
Posts: 4,494
Subwoofer RCA's are unaffected running next to power wires. That's only for a full-range signal. The alternator leaves ac current in the 12v line. This radiates as "alt whine" (it's alot more technical that that) it's a high pitched frequency that is inaudible through the subwoofer. However, it plays beautifully through mids and tweets.
__________________

SPL is one note... SQ is a flat 20-20.

If ported, always tune to CRF 33Hz... aka the Golden Number

Quote:
Originally Posted by Odin's Wrath View Post
Eye-humping: One advantage of dating a girl with a glass eye.
PLEASE DO NOT PM ME. EMAIL ME INSTEAD (the email form for me is found by clicking on my name at the top of the post.)

Anyone hiring?!?!? Fired(og) Installer
Reply With Quote
  #9  
Old 01-06-2011, 12:21 PM
Technical Article Contributor
2005 Ford F-150
 
Join Date: May 2007
Location: St. Louis, MO
Vehicle: 2005 Ford F150
Posts: 1,219
Quote:
Originally Posted by Low_e_Red View Post
Subwoofer RCA's are unaffected running next to power wires. That's only for a full-range signal. The alternator leaves ac current in the 12v line. This radiates as "alt whine" (it's alot more technical that that) it's a high pitched frequency that is inaudible through the subwoofer. However, it plays beautifully through mids and tweets.
Great! That's what I wanted to hear.
__________________
Reply With Quote
  #10  
Old 01-06-2011, 10:26 PM
Member
Garage is empty, add now
 
Join Date: Jan 2011
Posts: 79
5 of my runs of 1/0 gauge are ran under the truck lol!!

but you can usually run it from the battery between the fender and down,, i also found out you can run it under the steering wheel and down by the kick panels and run it to the back, you just have to take a few moment searching for open gourmets, def isnt too hard in a navigator
Reply With Quote
  #11  
Old 01-06-2011, 10:37 PM
Member
Garage is empty, add now
 
Join Date: Jan 2011
Posts: 79
Quote:
Originally Posted by MRLSU2U View Post
I personally would not run the RCA's on the same side as the power cable. The remote won't matter if you run it with the power.
if you get ground noise, well the answer is in the question lol.."ground noise" you will have to ground your RCA inputs. i have had more then 20 costumers come to me and 19 of them with pioneer decks,
Reply With Quote
  #12  
Old 01-07-2011, 12:57 AM
Senior Member
Garage is empty, add now
 
Join Date: Aug 2008
Location: 918!
Vehicle: 2004 Ford F-150
Posts: 289
Quote:
Originally Posted by T3audioNavi View Post
if you get ground noise, well the answer is in the question lol.."ground noise" you will have to ground your RCA inputs. i have had more then 20 costumers come to me and 19 of them with pioneer decks,
i have a pioneer and every time it gets to about 3-5 without music playing it sounds like abunch of static and the higher the volume the more static (DUH! lol) would grounding my rca cables fix this? and if so, how do i do it? lol my rca cables are ran right with my power wire down the door sill as well as my remote turn on. what can i do? its not a big deal, but id be happier without the static. lol
Reply With Quote
  #13  
Old 01-07-2011, 04:02 AM
Senior Member
Garage is empty, add now
 
Join Date: Apr 2007
Location: Slidell, LA
Vehicle: 2007 Ford F150
Posts: 4,494
Quote:
Originally Posted by T3audioNavi View Post
if you get ground noise, well the answer is in the question lol.."ground noise" you will have to ground your RCA inputs. i have had more then 20 costumers come to me and 19 of them with pioneer decks,
How does that even partly answer that statement? Where did anything about a Pioneer Radio even become mentioned? And grounding the RCA's lying next to a power wire isnt going to remove any 'alt whine' present in the cables. (The 12v interferes with the center pin not the outside shield pin.)

Quote:
Originally Posted by ridinonmoto17s View Post
i have a pioneer and every time it gets to about 3-5 without music playing it sounds like abunch of static and the higher the volume the more static (DUH! lol) would grounding my rca cables fix this? and if so, how do i do it? lol my rca cables are ran right with my power wire down the door sill as well as my remote turn on. what can i do? its not a big deal, but id be happier without the static. lol
Theres a lot more going on that a simple issue. Grounding the RCA's may remove some (if any... I doubt it) but this is far from over. You might try relocating the RCA's. Rechecking your ground. Check all wires for a slice in the jacket causing a ground. Start there, if that doesnt help email me.
__________________

SPL is one note... SQ is a flat 20-20.

If ported, always tune to CRF 33Hz... aka the Golden Number

Quote:
Originally Posted by Odin's Wrath View Post
Eye-humping: One advantage of dating a girl with a glass eye.
PLEASE DO NOT PM ME. EMAIL ME INSTEAD (the email form for me is found by clicking on my name at the top of the post.)

Anyone hiring?!?!? Fired(og) Installer

Last edited by Low_e_Red; 01-07-2011 at 04:07 AM.
Reply With Quote
  #14  
Old 01-10-2011, 08:46 PM
Member
Garage is empty, add now
 
Join Date: Oct 2010
Posts: 61
RCAs next to power wire have nothing to do with noise. Run your RCAs wherever it's convenient. If that happens to be beside the power wire, so be it. Basic electrical knowledge will tell you the the slight ripple voltage on the power wire isn't going to induce any kind of noise in a simple shielded cable. It would take a large variation in current, not voltage, to create a magnetic field capable of inducing noise. No such current variation exists in your power wire. Additionally, if you have a good battery under the hood and nothing is wrong with your alternator, even the voltage ripple is negligible. The source of alt whine is differential in the ground between the head unit and the amp coupled with poor signal ground isolation. The system equalizes the ground differential over the RCA, introducing ripple noise into the system. If your grounds are solid and no equipment is damaged/defective, you will not have noise. You can go so far as to zip-tie the RCAs to the power wire (I have done so in the past) and it isn't an issue.
Reply With Quote
  #15  
Old 01-11-2011, 03:51 AM
Senior Member
Garage is empty, add now
 
Join Date: Apr 2007
Location: Slidell, LA
Vehicle: 2007 Ford F150
Posts: 4,494
Quote:
Originally Posted by helotaxi View Post
RCAs next to power wire have nothing to do with noise. Run your RCAs wherever it's convenient. If that happens to be beside the power wire, so be it. Basic electrical knowledge will tell you the the slight ripple voltage on the power wire isn't going to induce any kind of noise in a simple shielded cable. It would take a large variation in current, not voltage, to create a magnetic field capable of inducing noise. No such current variation exists in your power wire. Additionally, if you have a good battery under the hood and nothing is wrong with your alternator, even the voltage ripple is negligible. The source of alt whine is differential in the ground between the head unit and the amp coupled with poor signal ground isolation. The system equalizes the ground differential over the RCA, introducing ripple noise into the system. If your grounds are solid and no equipment is damaged/defective, you will not have noise. You can go so far as to zip-tie the RCAs to the power wire (I have done so in the past) and it isn't an issue.
Sorry sir, not trying to get into an argument about this but that is incorrect. Just because youve done it in the past doesnt make it right. I have been installing for MANY years now and have seen these situations before. And yes, there are large variations in current.... aka the spikes/surges as the amp draws power due to music fluctuations. Yes, I may not have taken it to the nth degree to explain. It works much easier for those not in the know technically.

Just because you have solid grounds doesnt mean that you cannot introduce noise via the HU to Amp connection. If the grounds are different by even slight amounts, it can introduce noise. And thats not including interference caused by outside sources: power wires, control boxes, RF interference that may be picked up from the body of the car, etc.
__________________

SPL is one note... SQ is a flat 20-20.

If ported, always tune to CRF 33Hz... aka the Golden Number

Quote:
Originally Posted by Odin's Wrath View Post
Eye-humping: One advantage of dating a girl with a glass eye.
PLEASE DO NOT PM ME. EMAIL ME INSTEAD (the email form for me is found by clicking on my name at the top of the post.)

Anyone hiring?!?!? Fired(og) Installer

Last edited by Low_e_Red; 01-11-2011 at 04:08 AM.
Reply With Quote
Old 01-11-2011, 03:51 AM


 
 
 
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not 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
Trackbacks are Off
Pingbacks are On
Refbacks are Off



All times are GMT -4. The time now is 11:33 AM.


 
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Fordฎ is a registered trademark of the Ford Motor Company
Contact Us Advertising Privacy Statement Terms of Service Jobs Forum Text Archives
Emails & Contact Details

Search Engine Friendly URLs by vBSEO 3.5.2