wiring for 4 channel amp

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bluebear15

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i have a set of alpine type s 6.5" component speakers and a set of alpine type s 6.5" coaxial speakers i'm putting in my tahoe. i also want to wire in the rear roof speakers. since i have a alpine ida-x303 h.u. that only puts out 4 channels and have a rockford fosgate p450.4 4 channel amp i was wondering how i should wire everything up to get all 6 speakers playing?? diagrams would help too
 

fyremanpat

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I just doubled the wires on the rear speakers, it wont hurt anything.
 

grnrpr68

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agree with post about mine but just make sure the ohm is right for the amp on the rear channel
 
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bluebear15

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so i just run the wires from both rear speakers to the rear output on the amp??

what about the rca's? and whats the best way to route the speaker wire from the speakers?
 

Crispy

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What kind of amp are you using? By doubling up the rear channel you're changing the load, make sure your amp can handle it, or it will shut off at higher volume, or may not play at all.

Assuming you're using an aftermarket wiring harness (Metra/Schoshe/AI) you can save yourself some speaker wire by running wires from the amp up to the back of the radio. Then hooking up the speaker wires from the amp the car side of the wiring harness (not directly to the radio). Doing that saves a wire run directly to each speaker by using factory wiring. You may still have to run wires from either the 4x10s or from the rear 6.5s as aftermarket wiring harness have provisions for 4 speakers and the truck has 6.

On my Tahoe I have the power and remote line running on the drivers side and the RCA and speaker cables running on the passenger side. And by the way, I have my system powered from the aux 12v post at the fuse box. Im not running anything crazy so it wont be an issue, otherwise Id go straight to the battery.
 

fyremanpat

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i ran my power wire under the truck and then came up through the back near the rear ac. what ever you do, dont skimp on the rca's and dont run them next to power wires
 
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bluebear15

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What kind of amp are you using? By doubling up the rear channel you're changing the load, make sure your amp can handle it, or it will shut off at higher volume, or may not play at all.

Assuming you're using an aftermarket wiring harness (Metra/Schoshe/AI) you can save yourself some speaker wire by running wires from the amp up to the back of the radio. Then hooking up the speaker wires from the amp the car side of the wiring harness (not directly to the radio). Doing that saves a wire run directly to each speaker by using factory wiring. You may still have to run wires from either the 4x10s or from the rear 6.5s as aftermarket wiring harness have provisions for 4 speakers and the truck has 6.

On my Tahoe I have the power and remote line running on the drivers side and the RCA and speaker cables running on the passenger side. And by the way, I have my system powered from the aux 12v post at the fuse box. Im not running anything crazy so it wont be an issue, otherwise Id go straight to the battery.

i've got a rockford fosgate p450.4 4 channel amp for the 6 speakers and a rockford fosgate p350.1 mono amp for my subs.

i'm just a little confused..... would you be able to post a diagram of your set up or the setup i should go with? (cheap paint pics are fine w/ me lol)
 

Crispy

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I'll post a pic tomorrow. I'm installing an EQ and some dynamat so the dash will be apart. The rockford amp will be fine to run 6 speakers.
 
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bluebear15

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so i figured out how to wire everything up. my question now is, is it better to use 0ga or 4ga wire for my power wire? again i'm running rockford fosgate p450.4 putting out 106W rms @ 4ohm per channel and rockford fosgate p350.1 that puts out 251W rms @ 4ohm (bridged).

will 0ga be overkill? or will 4ga be too little? just not sure what's the best to run
 

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