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How To: Install Speaker and Amp to OEM Radio

40K views 39 replies 27 participants last post by  TheBlack1  
#1 ·
here is my attempt at a how-to and the only reason i am doin on (other than to help out) is cause there isnt ONE how-to with all the info in one place...so here goes

Tools and Supplies:
Phillips Screwdriver
Wire Stripper
Quick Splices (Wire Connectors - Quick Splice at PartsAmerica.com)
Butt Connectors (Shop 3M: 3M Scotchlok Seamless Butt Heat Shrink Connector)
Add-a-Circuit (Parts Express:Littelfuse Add-A-Circuit Fuseholder for Mini Fuses)
Fuses
Cresent Wrench
Speaker Wire
Amp Wires and Inline fuse(Amp install kit will have it all)
RCA Cables
In-line Output Converter - IOC (Pac HL-35 Adjustable Line Output Converter Adjustable / 2-20w Input Kollman Radio Electronics- Kansas City's Car Audio, CB Radio, Scanners, Mobile Video & Alarms)
And of course the speakers and amp lol


After you make sure you got everything you need to remove the floor (both the folding and lower.

then remove the speaker cover on left side by removing one screw in the cup for the privacy cover and pop it out. i went with the left side cause it has a "mouse hole" on the bottom of the side pannel to make the wire routing easier. (will show "mouse hole" later)
Image


Remove the screws (4) that hold the speaker in. Then slide speaker out by lifting left side (closest to hatch) and then lift out. The side panel over laps the speaker on right side a little so you cant lift it straght out. After you get the speaker out and unplugged carefully cut the wire wrap back so you can get more slack between the wires. Now take your speaker wire that you will be installing, get the length that you will need (extra is better especially if you have an adjustable IOC) and a couple of your quick splices and connect them and the additional wire to the factory wire. On my setup the wire with the Gray is the Ground and the Brown was positive. here is a wire diagram that JamminWagon posted on here

http://www.custommagnums.com/forums/audio-video/22-speaker-wiring-diagrams-mnual.html

its kinda hard to see but when you look at the diagram, the left wire for each speaker is the power and the right is negative.

After you get the wires spliced and together is should look similiar to this

Image


Now before you connect it to speaker you need to run the wire down to the "mouse hole" which is easy to do. just take the other end of the wire, reach into the speaker hole all the way down to the floor and slide it through "mouse hole." After that connect and reinstall the speaker and the cover. Also make sure you noted or remember which of the speaker wire you connect to the power and neg.

Next you need to take your IOC and connect it to the wires you ran though the "mouse hole." I got an adjustable one but you can get a set one. With that said since I only used one speaker I had to connect both power and ground to the same with coming from stock speaker.

here is the IOC connected (mainly took pic to show "mouse hole")
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The next step is to hook up the wires for the amp (power, ground and remote) The power and ground are obvious but i took pics anyway

Power
Image


Ground - I used the center bracket of the rear seats
Image


Now the part that had me confused a little and the main reason Im doin this LOL...the remote wire.

First take the cover off the fuse box and here is what you will more or less see depending on your setup
Image


This is the area that you will be working with...the one that is staggered is the infamous fuse #18
Image


Take your add-a-fuse, use the already installed butt connector and connect to your remote wire and add the fuses (mine are 20a)
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Now since i have the smokers package (though i dont smoke???) all I had to do is take Fuse 18 out and plug the add-a-fuse in in its place. If you dont have the smokers package fuse 18 will be inline with the rest and i believe all you have to do is plug the add-a-fuse in the staggered postion...but im not 100% on that.

Here is how I routed the wire out of the fuse box
Image


Now close up the fuse box and route the wires to your liking to get to the area right behind seat...this is mine
Image
 
#2 ·
Now before you put your floor back in hook up the amp (just the power, ground and remote minimum) and make sure it works. If all checks out out the floor back in. I Put extra slack in my speaker wire so that I could have easy access to the adjustable IOC once floor was back in (it actually reached further than that so all I gotta do is lift upper floor panel)
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positon speaker and amp, connect everything and bump away
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I hope I got everything in there. If you got questions feel free to ask.
 
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#7 ·
Thanks fella's...like i said that my first real write-up...glad it passed muster LOL
 
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#8 ·
Great write up indeed. Lots of pics and info :) If you are the more adventurous type, you can by a C2A-CHY from PAC Audio and it will add the remote turn on circuit for you at the dash. You will need to run the remote wire + RCA's to the back and it costs like $80 + shipping. Sound is better than the speaker wire splice but both methods have their pros and cons.
 
#9 ·
according to the car toys guy i could have spliced before the amp but me bein lazy and just wanting to get it installed i did it this way. after i got the adjustment the way i wanted it its done...not to mention i can use the bass setting on the radio to adjust it also (so i got 3 adjustments now: the radio, the amp and conveter lol)
 
#10 ·
cool! As a new person to car audio i was looking at installing an amp and its nice to see a guide geared for the magnum. A few questions...

1) where would you install the capacitor?
2) where did you run the hot wire?
3) how did you run the hot wire
4) where was the battery you ran the hot wire from (I have a battery by the extra wheel - what is it for!?!??)

thanks ahead of time and nice writeup and setup :D
 
#11 ·
that is your battery for the car...its mounted in the rear of the car (for weight distribution according to my sales guy) i connected my hot wire straight to battery with an inline fuse. if you look at pic 4 that is the hot, pic 5 is the ground and pic 10 is the routing (blue wire) i ran it along with factory wiring for the most part (that plastic cover pops open with a screw driver) and i do not have a capacitor installed either
 
#13 ·
i have been told that you only need a capacitor if your lights flicker at anytime (usually at high volume) not sure what your asking about the mouse hole. as for the battery dont feel bad i didnt know it was back there til i bought the car LOL

back to mouse hole...its on left rear panel, and it makes it alot easier to run wire from left rear speaker to the storage area (where spare and battery are at) and you can stick arm in the top with speaker out and reach the bottom to feed the wire through the hole.
 
#14 ·
Hey man, nice article you got. I'm installing my system right now and I was wondering do you have a 2008 Magnum? I have a 2008 Magnum SE with 4 6X9's factory. 2 in the front doors and 2 in the very back cargo area. If you have a 2008 Mag I have a question for you about your aftermarket wiring harness for your CD player. I ordered a AXXESS XSVI-6502 Harness which is what everyone told me I need even though it says 2005-2007 Magnums, I got it and tried pluggin it in and it doesn't fir into anything from my factory radio. Do you know anything about this? Thanks man!
 
#17 ·
I have an 08 with the BA system but im running the factory radioin the setup so Im not sure I can help withth wiring question, but ask away

thanks guys
 
#19 ·
"Next you need to take your IOC and connect it to the wires you ran though the "mouse hole." I got an adjustable one but you can get a set one. With that said since I only used one speaker I had to connect both power and ground to the same with coming from stock speaker."


Did you connect the power to + or - speaker cable? Same question for ground..
 
#20 ·
IOC? i think you mean LOC - line out converter and i did use one, got it wired to one speaker in write up...but connected to both now
 
#22 ·
Whew... Was wondering why you would want to connect the wires you ran through the "mouse hole" to the International Olympic Comittee (IOC) HAHAHA!!! :haha:
 
#23 ·
there is a pos and neg on the LOC so it is connected to both...the only reason i changed it to both speakers is cause i have 2 10's and thought that there would be a left and right even with the stock radio (more so for the movies and the VES) but i havent noticed a difference
 
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#26 ·
Ya I love those THX intros LOL