Notices
Excursion - King of SUVs 2000 - 2005 Ford Excursion
Sponsored by:
Sponsored by:

Subwoofer amp install- tips?

Thread Tools
 
Search this Thread
 
Old Jul 16, 2014 | 06:08 PM
  #16  
Garrett248's Avatar
Garrett248
Thread Starter
|
Freshman User
Joined: Apr 2014
Posts: 44
Likes: 0
Update: I started to prepare for my amp install this weekend. I started to look for a grounding point under the drivers side second row.
I took out one of the seat bolts and sanded the seat bracket down around the hole + I sanded down the contacting face of the bolt.
Will this be good enough for a ground??
I hope this is what you guys were referring to when you said use a seat bolt for grounding.

Name:  pUWjCLj.jpg
Views: 350
Size:  268.8 KB
Name:  dtx5pHw.jpg
Views: 398
Size:  353.8 KB
Name:  jKbWANw.jpg
Views: 372
Size:  348.3 KB
Name:  iCjC1Zf.jpg
Views: 446
Size:  373.8 KB
 
Reply
Old Jul 16, 2014 | 08:54 PM
  #17  
sessland's Avatar
sessland
More Turbo
10 Year Member
Photogenic
Liked
Loved
Joined: Apr 2014
Posts: 645
Likes: 29
From: Toronto, Canada
At the very least you should sand ALL the paint off if you want to ground it to the seat but that's still not a very good ground.

The seat rail is painted and so is the floor of the truck so there is no bare metal touching between those two. The only bare metal in that scenario is the threads of the bolt.
 
Reply
Old Jul 16, 2014 | 09:13 PM
  #18  
Garrett248's Avatar
Garrett248
Thread Starter
|
Freshman User
Joined: Apr 2014
Posts: 44
Likes: 0
Originally Posted by sessland
At the very least you should sand ALL the paint off if you want to ground it to the seat but that's still not a very good ground.

The seat rail is painted and so is the floor of the truck so there is no bare metal touching between those two. The only bare metal in that scenario is the threads of the bolt.
You're absolutely right about the no bare metal touching- that's what it looked like to me when I was taking a look.

After digging through threads it seems like a lot of people have grounded their amps to the seat bolt...I'm assuming the same way I'm doing it? I don't really see another way.

Hopefully someone will respond who has done the same thing or something similar.
 
Reply
Old Jul 17, 2014 | 04:58 AM
  #19  
kornfanjoe's Avatar
kornfanjoe
Posting Guru
Joined: Sep 2011
Posts: 1,287
Likes: 0
From: Fraser Valley
I removed the 2nd row entirely for my installation, sanded down the bottom of the seat bracket and the top of the body where it bolts to, and sandwiched my ground lug between the two. I'm running a 360 watt 4 channel speaker amp in that location.
For lower wattage applications you should be fine, if you aren't getting enough ground the amp will cut out and stop playing for a second or two and you will notice it. If that happens turn it down some until you correct it.
 
Reply
Old Jul 17, 2014 | 05:54 AM
  #20  
Archion's Avatar
Archion
Logistics Pro
Veteran: Marine Corps
Photogenic
Loved
Community Favorite
Joined: Jan 2007
Posts: 3,838
Likes: 106
From: Martinsburg, WV
Club FTE Gold Member
My my 300.1, grounding to the seat bolt is just fine. I didn't even sand, and I push it hard. If you are going high power (~600+) as mentioned above, you will want a good solid metal to metal ground. I would lift the carpet and make one. But don't go too far for it, a long ground can introduce noise into the system, like an antenna. I like to keep my total ground length under 15" max.
 
Reply
Old Jul 17, 2014 | 06:04 AM
  #21  
Garrett248's Avatar
Garrett248
Thread Starter
|
Freshman User
Joined: Apr 2014
Posts: 44
Likes: 0
Originally Posted by Archion
My my 300.1, grounding to the seat bolt is just fine. I didn't even sand, and I push it hard. If you are going high power (~600+) as mentioned above, you will want a good solid metal to metal ground. I would lift the carpet and make one. But don't go too far for it, a long ground can introduce noise into the system, like an antenna. I like to keep my total ground length under 15" max.
Hmmm I'm a little nervous my amp is 1,100 watts but it will be pushing 550watts RMS (at 2ohms)
 
Reply
Old Jul 17, 2014 | 09:26 AM
  #22  
Archion's Avatar
Archion
Logistics Pro
Veteran: Marine Corps
Photogenic
Loved
Community Favorite
Joined: Jan 2007
Posts: 3,838
Likes: 106
From: Martinsburg, WV
Club FTE Gold Member
You better do a good ground, and an equally good supply.
 
Reply
Old Jul 17, 2014 | 01:40 PM
  #23  
Garrett248's Avatar
Garrett248
Thread Starter
|
Freshman User
Joined: Apr 2014
Posts: 44
Likes: 0
Originally Posted by Archion
You better do a good ground, and an equally good supply.
That's what I'm trying to do!

Has anyone done an install like I showed in my pictures??
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

10 Ways Ford is LOSING to the Competition

 Joe Kucinski
story-1

Top 6 Best Deals Available on New Fords & Lincolns Right Now

 Brett Foote
story-2

This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

 Verdad Gallardo
story-3

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-4

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-5

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-6

Every 2026 Ford Engine Explained

 Brett Foote
story-7

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-8

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-9

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
Old Jul 17, 2014 | 09:51 PM
  #24  
sessland's Avatar
sessland
More Turbo
10 Year Member
Photogenic
Liked
Loved
Joined: Apr 2014
Posts: 645
Likes: 29
From: Toronto, Canada
I don't mean to come off as a dick, but....

Who cares how many people do it the seat bolt way. It is NOT a proper ground period.

I have personally had a pretty scary experience with a grounding issue and I wasn't running any crazy high power amp. (It was an old school Soundstream Continuum for anyone that is interested)

Another fun fact about bad grounding. If your ground should happen to come loose for any reason it will make super cool sparks each time it touches metal and it won't blow the power fuse. This is the same way that arc welders work. We've all heard about people welding with a 12v car battery and a coat hanger when stranded right? No amp necessary

Ask me how I know...
 
Reply
Old Jul 18, 2014 | 01:38 AM
  #25  
Peace2Peep's Avatar
Peace2Peep
Laughing Gas
20 Year Member
Photogenic
Liked
Joined: Nov 2001
Posts: 829
Likes: 22
From: Florida
Find a good spot on the chassis and place your ground. DO NOT use this bolt. That would not be smart. It's never convenient to do something correctly, but it will give you safety and piece of mind.
 
Reply
Old Jul 18, 2014 | 05:37 PM
  #26  
superdave02f552's Avatar
superdave02f552
More Turbo
10 Year Member
Photogenic
Liked
Loved
Joined: Jan 2014
Posts: 722
Likes: 13
From: ramsey mn
Originally Posted by Peace2Peep
Find a good spot on the chassis and place your ground. DO NOT use this bolt. That would not be smart. It's never convenient to do something correctly, but it will give you safety and piece of mind.

Curious as to what is sooooo bad, if the paint is cleaned away from the floor and the seat bracket
That connection will be fine. As far as sparks flying and bursting into flames how often do seat bolts come out to let the wires flop around to arch that bad. BUT on the battery end I would add an equal gauge wire from the battery to the chassis
 
Reply
Old Jul 18, 2014 | 07:13 PM
  #27  
superdave02f552's Avatar
superdave02f552
More Turbo
10 Year Member
Photogenic
Liked
Loved
Joined: Jan 2014
Posts: 722
Likes: 13
From: ramsey mn
Correction body
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
68bluebeast
1997 - 2006 Expedition & Navigator
5
Oct 10, 2012 04:58 PM
Jbru167
Excursion - King of SUVs
9
Oct 18, 2007 09:11 PM
SoCalSuperCrew
2004 - 2008 F150
1
Jul 2, 2004 10:02 PM
1yamman350
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
2
Jan 25, 2004 11:12 AM
svn2002s
Audio & Video Systems, Navigation, Satellite Radio & Mobile Electronics
4
Jan 5, 2004 09:19 PM




All times are GMT -5. The time now is 03:55 PM.

story-0
10 Ways Ford is LOSING to the Competition

Slideshow: 10 ways Ford is losing to the competition

By Joe Kucinski | 2026-06-15 09:52:01


VIEW MORE
story-1
Top 6 Best Deals Available on New Fords & Lincolns Right Now

Some great targets in today's expensive world.

By Brett Foote | 2026-06-15 09:35:19


VIEW MORE
story-2
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level

Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.

By Verdad Gallardo | 2026-06-12 11:01:55


VIEW MORE
story-3
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-4
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-5
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-6
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-7
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-8
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-9
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE