Lets hook up
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Joined: Jun 2009
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From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Lets hook up
How can I wire 4 Pioneer speakers to a stock head unit with a subwoofer in the trunk?
I don't care what I have to do to do it, but I AM NOT REPEAT AM NOT replacing my stock head unit. After market ones are ugly and just dont look right or fit the rest of the car, PERIOD.
But anyway....haha yeah I don't know how to do it without two amps...
I don't care what I have to do to do it, but I AM NOT REPEAT AM NOT replacing my stock head unit. After market ones are ugly and just dont look right or fit the rest of the car, PERIOD.
But anyway....haha yeah I don't know how to do it without two amps...
Thread Starter
Senior Member
Joined: Jun 2009
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From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Re: Lets hook up
Please help!
So far I figure that I need an adapter from the back of the radio to cut out to the amp and then boost the power and sent it back to the harness to the speakers. But to do that I need two adapters, and a 4 channel amp.
Then I need to get another adapter to go out of the harness (before or after the amp for the speakers?) to the mono amp, and then with speaker wire hook up the sub in the trunk.
All while using a powersource wired from the battery into the car somewhere, probably where the wiring harness from the engine comes in to meet the computer, split in two for the two amps, and grounded to the same place in the car.
How does that sound? Am I forgetting something? What kind of adapters do I need?
So far I figure that I need an adapter from the back of the radio to cut out to the amp and then boost the power and sent it back to the harness to the speakers. But to do that I need two adapters, and a 4 channel amp.
Then I need to get another adapter to go out of the harness (before or after the amp for the speakers?) to the mono amp, and then with speaker wire hook up the sub in the trunk.
All while using a powersource wired from the battery into the car somewhere, probably where the wiring harness from the engine comes in to meet the computer, split in two for the two amps, and grounded to the same place in the car.
How does that sound? Am I forgetting something? What kind of adapters do I need?
Member
Joined: Oct 2008
Posts: 222
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Car: 1985 Camaro Iroc-Z
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.42
Re: Lets hook up
Wish i could help, bump for you though. I too don't want to replace the stock head unit but I've given up and am now shopping for a head unit that doesn't look like it belongs in a 1960's UFO. Best of luck man, Subscribing lol
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 976
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From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Re: Lets hook up
Thanks, I'm going to do this, I just need to know how, I know it will sound good, and I want to keep my stock look for car shows and for the sake of originality, the amps will be hidden under the seats, and you wont be able to see any wires, so when I want to, all I have to do is take out the sub in the trunk and its back to looking completely stock.
I'm sure that no one has kept the radio I have in their car, its only a radio, no tape, no nothing. I think that keeping the stock UM7 radio will make it one of a kind. There were only 1089 UM7 radios put in 1990 Camaros. So I want to keep it in the car at all costs. But its not putting out enough power to feed my Pioneer speakers, and its starting to get fuzzy after almost a year.
I have 150 watt 4x6's and 300 watt 6x9's with a 600 watt sub in the trunk split between two domes. Its going to be sweet as all get out. And nothing will be able to beat a dual amp sound like that, already with just the speakers it has nice response, but its only going to be so long before the low power output from the radio destroys the speakers.

So all in all, I'm going to need 1050 total watts of power, and at least 30 RMS per channel to pull this off. But its going to happen.
I'm sure that no one has kept the radio I have in their car, its only a radio, no tape, no nothing. I think that keeping the stock UM7 radio will make it one of a kind. There were only 1089 UM7 radios put in 1990 Camaros. So I want to keep it in the car at all costs. But its not putting out enough power to feed my Pioneer speakers, and its starting to get fuzzy after almost a year.
I have 150 watt 4x6's and 300 watt 6x9's with a 600 watt sub in the trunk split between two domes. Its going to be sweet as all get out. And nothing will be able to beat a dual amp sound like that, already with just the speakers it has nice response, but its only going to be so long before the low power output from the radio destroys the speakers.

So all in all, I'm going to need 1050 total watts of power, and at least 30 RMS per channel to pull this off. But its going to happen.
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From: Pepperell, MA
Car: 1987 Trans Am
Engine: LQ9/L92
Transmission: 4L60E
Re: Lets hook up
what you want to do is possible, but you gotta start from the beginning. first, disregard the 150 and 300 watt ratings you've got on your speakers; they mean nothing. if you want to stick with your stock deck, the easiest route:
1. run front speakers off the front channels on the deck.
2. get a 4 channel amp and an inexpensive line level converter. this will turn the deck's rear channel outputs into something the average amp can deal with.
3. use channels 1 & 2 on the amp for your rear speakers
4. use channels 3 &4 as a bridged (if possible) as a bridged input to you sub
thats about as simple as you can get with your stock deck and do what you want within a limited budget. if you want to do it right, look into a rf 3.sixty2 or a JBL MS-8, getting rid of your rear speakers, and just amping a set of fronts and a sub. What you want to do, what you've got for install abilities, and what you've got for a budget will be a big factor in what you can do
1. run front speakers off the front channels on the deck.
2. get a 4 channel amp and an inexpensive line level converter. this will turn the deck's rear channel outputs into something the average amp can deal with.
3. use channels 1 & 2 on the amp for your rear speakers
4. use channels 3 &4 as a bridged (if possible) as a bridged input to you sub
thats about as simple as you can get with your stock deck and do what you want within a limited budget. if you want to do it right, look into a rf 3.sixty2 or a JBL MS-8, getting rid of your rear speakers, and just amping a set of fronts and a sub. What you want to do, what you've got for install abilities, and what you've got for a budget will be a big factor in what you can do
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 976
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From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Re: Lets hook up
I want to keep all of my speakers and run it all at the same time, I don't want to give up my rear speakers to be honest, I really like them, haha.
Is it possible to bridge the rear speakers together and still get enough power to run them good enough to stay on par with the rest of the system? I won't need them as much as I do now since I'm adding subs in the back, but they were the ones that really produce the sound now in my car, and thats another reason why I want to keep them. Like I just want to get more than the 10 watts or so to them that the radio is giving right now, even 20 watts would be a lot better for them. But if I can bridge the two rear speakers correctly and safely, and then use the 4th channel for the amp, would that be good enough for it?
I've heard of people running a sub off of a mutli-channel amp but I hear its better to run it off a mono amp. I have the money to get an install kit powerful enough to feed two amps, and the money for two amps to do the job, I just don't know what to get. I've seem 1200watt 4 channel amps on ebay for $50, and hell, its only $50 so if anything happens I won't be out that much. And then I would just need something else to feed the subs. I can spent maybe $300-$400 on this setup, I want it that bad, haha.
I just don't know what to get or what to do. Once I know I can do it!
Is it possible to bridge the rear speakers together and still get enough power to run them good enough to stay on par with the rest of the system? I won't need them as much as I do now since I'm adding subs in the back, but they were the ones that really produce the sound now in my car, and thats another reason why I want to keep them. Like I just want to get more than the 10 watts or so to them that the radio is giving right now, even 20 watts would be a lot better for them. But if I can bridge the two rear speakers correctly and safely, and then use the 4th channel for the amp, would that be good enough for it?
I've heard of people running a sub off of a mutli-channel amp but I hear its better to run it off a mono amp. I have the money to get an install kit powerful enough to feed two amps, and the money for two amps to do the job, I just don't know what to get. I've seem 1200watt 4 channel amps on ebay for $50, and hell, its only $50 so if anything happens I won't be out that much. And then I would just need something else to feed the subs. I can spent maybe $300-$400 on this setup, I want it that bad, haha.
I just don't know what to get or what to do. Once I know I can do it!
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Member
Joined: Oct 2008
Posts: 222
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Car: 1985 Camaro Iroc-Z
Engine: LB9
Transmission: 700R4
Axle/Gears: 3.42
Re: Lets hook up
Mind if i butt in again? Since you have the same exact radio my '85 has, are you only going to have radio? or are you adding aux in somewhere?
Btw you may be satisfied with an ebay amp, but any cheap/high-watt amp is going to put 1/10th the power or less as they claim (theres some exceptions, but never 1200watts for 50).
Btw you may be satisfied with an ebay amp, but any cheap/high-watt amp is going to put 1/10th the power or less as they claim (theres some exceptions, but never 1200watts for 50).
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 976
Likes: 0
From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Re: Lets hook up
Mind if i butt in again? Since you have the same exact radio my '85 has, are you only going to have radio? or are you adding aux in somewhere?
Btw you may be satisfied with an ebay amp, but any cheap/high-watt amp is going to put 1/10th the power or less as they claim (theres some exceptions, but never 1200watts for 50).
Btw you may be satisfied with an ebay amp, but any cheap/high-watt amp is going to put 1/10th the power or less as they claim (theres some exceptions, but never 1200watts for 50).
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 976
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From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Re: Lets hook up
Its just a cheap Scosche unit from Walmart that I got for $12, but it works better than the Belkin Tunecaster II that I also got at Walmart for $30. And it doesn't eat batteries like the Belkin did.
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Joined: Mar 2008
Posts: 66
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From: Belton Texas
Car: 1987 Formula 350
Engine: 5.7 350 tpi
Transmission: 700r4
Axle/Gears: posi
Re: Lets hook up
Check out some sound processors like the MTX Audio reQ-5, it might solve your problem I'm not sure. Here's a link to it at sonicelectronix.
http://www.sonicelectronix.com/item_...C-sup%3E-.html
http://www.sonicelectronix.com/item_...C-sup%3E-.html
Junior Member
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From: VA
Car: 87 Iroc z
Engine: 305
Transmission: AT
Re: Lets hook up
Ok this maybe stupid as im not an expert but.....
cant you just use an amp with speaker lvl inputs and just tap into your factory speaker wires?
http://www.sonicelectronix.com/item_...08ZX350.4.html they also have an RCA adaptor that turns speaker wires into RCA plugs.
cant you just use an amp with speaker lvl inputs and just tap into your factory speaker wires?
http://www.sonicelectronix.com/item_...08ZX350.4.html they also have an RCA adaptor that turns speaker wires into RCA plugs.
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 976
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From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Re: Lets hook up
I don't know how to adapt the ports off the back of the radio to go into an amp, and then out of an amp, back into the harness. What kind of adapters do I need to get? But I am going to need a nice amp like that to wake up the speakers.
Then the problem is going to be hooking up the subs in the trunk. I'm going to need to adapt the harness once for the speakers, and then again for the amp to the subs.
That hardest part is going to be getting the speakers to work because I need to bypass the harness to go to the amp, and then get back into the harness to the speakers.
Confusing....
Then the problem is going to be hooking up the subs in the trunk. I'm going to need to adapt the harness once for the speakers, and then again for the amp to the subs.
That hardest part is going to be getting the speakers to work because I need to bypass the harness to go to the amp, and then get back into the harness to the speakers.
Confusing....
Thread Starter
Senior Member
Joined: Jun 2009
Posts: 976
Likes: 0
From: Montgomery, PA
Car: 1990 Camaro RS
Engine: 355 Vortec TPI LT4 Hotcam
Transmission: TH700-R4
Axle/Gears: 3.23
Re: Lets hook up
And by tap do you mean splice? I'd rather splice together some sort of home made adapter before I just cut a perfectly good harness like that...
Junior Member
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From: VA
Car: 87 Iroc z
Engine: 305
Transmission: AT
Re: Lets hook up
yea dont know about the amp man. Forgot about that part when a posted!
I've never used speaker lvl inputs myself so...... but maybe call crutchfield or someone.
I've never used speaker lvl inputs myself so...... but maybe call crutchfield or someone. Junior Member
Joined: Sep 2010
Posts: 57
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From: Michigan
Car: 1985 Z-28
Engine: 305 TPI
Transmission: 87 700R4 repl. for 85 700Rjunk
Re: Lets hook up
Ok, take this as it's worth or not...take 1ADan's advice. Wire your splitter into your rear speakers. You're using that for nothing more than a signal to get to your amp. You won't lose your rear speakers unless you don't hook them up. Send your audio cable back to the amp and tune your subs from there. I hooked mine up that way for a long time. You can even wire in a line level up front so you can get the tuneability like a high end deck for the subs so you don't have to go to the trunk to turn the subs down if you don't want (or if po po is right near you for a noise violation) If you have any questions let me know, I did car audio for YEARS and we did all sorts of crazy stuff...a buddy of mine is running 4 15" solobarics off a stock head unit in his 91 third gen (4 amps though)
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