replacing camry 2002 le w/ JBL system - Toyota Nation Forum : Toyota Car and Truck Forums

butho33 · 03-20-2005, 03:24 AM

im driving a 2002 camry le wit JBL 6 disc changer system. i have ideas to replace my whole sound system .... with

FRONT speakers
- alpine type R component set ( 6.5 in)

Rear speakers
- alpine type R 6x9

and i am planing to reuse the jbl head unit power the whole system with an alpine 4 channel amp.

okay i realli need audio experts to help me correct my system.
1. IF i were to change my head unit to an alpine headunit, how do i bypass the factory amp ?bypass as in just leave the amp cables in is original place (not connected to anything) ?

2. AMP - can i hook up 2 channels (tweeter and 6.5's) and 2 channel rear speakers

or can i use my jbl head unit or stock amp to power rear and the 4 channel amp to power the component set ? if it is possible ? how do i do it ?

i wanna do this system my self ... so can any of u help me ?

thanks

dna59 · 03-20-2005, 04:00 AM

1. there should be a seperate wiring harness behind your H/U to bypass your amp. so all you have to do is fnid it.

***cam2Xrunner*** · 03-20-2005, 04:24 AM

http://www.toyotanation.com/forum/t70082.html

Should be the same procedure for your car too. If possible go with the Alpine SPX-177R those are awseome speakers for the money.

http://www.ikesound.com/product-product_id/2171

I'd bridge the 4 channel amp for the front component's and run the rear speakers off the stock JBL amplifier. Or you can get an Electronic crossover and go active with the 4 channel. Meaning each channel runs a driver. More work to set up though, and more equipment needed.

Does your amp have speaker level inputs? If not then look into getting a good LOC The NE-774V from www.davidnavone.com will work good.

butho33 · 03-20-2005, 04:17 PM

ill probably follow your guide by putting 4 channel amp for the components and use the jbl amp for the rears .... thanks for the tips.

ok first of all .... how to i set up the system to be powered like that ? and ill probably use back the same jbl 6 disc changer for the HU .... is there any guide ?

***cam2Xrunner*** · 03-20-2005, 06:54 PM

OK so you want to use the factory JBL headunit with the indash 6 disc changer, right?

Basically you will find the speaker wires that are coming out of the amp and label each wire to which speaker it is going to. Then take those speaker wires and wire them to the LOC, the LOC will have 4 set's of wires.
Heres the colors of the factory amps speaker wires.

The front left pos. is pink
The front left neg. is purple

The front right pos. is light green
The front right neg. is light blue

The rear left pos. is black
The rear left neg. is yellow

The rear right pos. is red
The rear right neg. is white

The ACC turn on lead is a small light grey wire, you can tap into that for the turn on lead for the new amp.

From the LOC you plug in your RCA cables and run them to the new amp you are going to use. Make sure to run the RCA cables on the opposite side of the car as your power wire for your amp.

Make sure your 4 channel amp is bridgeable. Then make sure whatever speakers you are putting in can handle the amount of power the amp is going to be sending them. You can overpower the speakers a certain amount, you will just have to have the gain turned down a little.

Check out the JL audio tutorials for more info.
http://www.jlaudio.com/tutorials/index.html

butho33 · 03-20-2005, 07:44 PM

thanks .... i understand it now ... but i still have some questions...

the front
the components are powered by the 4 channel amp .... and i connect the speaker wires to the amp .... then i connect the rca from my amp to the LOC ....did i get this right ?

and

the rears
i use my factory wirings that link to the Stock jbl amp by using the color code wires of the back speaker to connect to the LOC ?i dun connect the front speakers ryte ? or do i connect thru another rca adapter ?

i install the LOC on the HU ryte ?

and for the lead on cable ... i tap it at the headunit where i install the LOC ?

should i remove the front speaker cables and install a new set of wirings when i change the components ?

im thinking of getting the
-alpine type R components with the crossovers
-and alpine type R 6x9
-and for the new amp im couldnt decide .... thinking of an alpine v12 4 channel
-is it ok to use the original headunit with the LOC u have introduced to me ?

im sorry to throw u all this questions ... im i dun realli knoe much abt wirings
thanks

***cam2Xrunner*** · 03-20-2005, 08:27 PM

Yes, run new speaker wire (14-16 ga. preferably) from the amp to the crossovers of the components set. From the crossovers you will run a pos, and neg to the tweeter and a pos and neg. to the woofer. Mount the crossover somewhere under the dash or under the seats. Try not to mount them in the door.

And connect the RCA from the LOC to the amp.

For the rears if you are going to power those off the factory amp, then you are going to leave the rear speakers connected to the factory amp. If you are planning on getting a subwoofer, then use the rear channels of the LOC for the sub amp. You'll just want to tap into those rear speaker wires and leave them connected to the rear speakers as well.

I would install the LOC close to the factory amp which is behind the glovebox.

For the turn on lead, there will be a small grey wire going to the back of the headunit. Tap into it there. There might also be one going to the JBL amp too, but I'm not sure. I would just tap into the one on the headunit.

You don't have to remove the factory speaker wire, in fact I'd rec. leaving it there, incase you trade in the vehicle, you could easily replace your components with the factory speakers.

As for the components and amps, what's your budget for the everything?

And yes the LOC is so you can keep the stock headunit.

butho33 · 03-20-2005, 09:38 PM

erm my budget is about 500 or 600 ... and wanna add an extra amp and sub for the next upgrade ...

im still alittle confused with the LOC ... headunit connects to loc ryte ? the rca cables from new amp connects to loc .... and the factory amp connects to where ? is there another slot on the headunit to connect the the factory amp ? is it possible that i combine the 4 channel jbl amp into 2 channel to power my rear ?

and u mentioned tap the rear speakers into the jbl amp wires ryte ? will it still power the speakers ?

hey thanks alot for ur help ... id appreciate it

***cam2Xrunner*** · 03-20-2005, 10:04 PM

The LOC connects to the speaker wires coming out of the factory external amp behind the glovebox.

You will connect the rca cables to the other side of the LOC. From there you will send the RCA cables to the new Aftermarket amps in the trunk. From the amp you will send new speaker wire to the front component speakers.

For the rear speakers, use the factory wiring.

WHen you tap into the rear speaker wires from the back of the JBL amp behind the glovebox, you will just tap into them, while still having the rear speakers connected.

You do not want to bridge the factory amp for the rear speakers, it is not bridgeable. Just have the rear channels of the factory amp to power the rear speakers.

With 600 bucks this is the way to go
http://cgi.ebay.com/ws/eBayISAPI.dll...e=STRK:MESE:IT

^eddiem67 is a member of TN and is a good seller.
Those speakers are some of the best you can buy for the money. HIGHLY recomended!!!

That leaves you with 150 bucks for a 2 channel amp. You might need to throw in another 50-100 bucks, but you can get a good amp for that much.

I'll see if I can find a good amp in the 150-200 dollar range. But you will be VERY pleased with those DLS. They were the European speaker of the year.

butho33 · 03-20-2005, 10:45 PM

that means i dont touch the wires from HU ... except that i have to tap the turn on wire from my new amp ?

the LOC is connected to my amp ? and i connect all the wires following the color codes ? and i tap the back speakers with a new wire at the LOC ? or i use the factory wiring ? i dun realli get it ...

woah ! nice speakers ... ive read abt it but its alittlebit costly for a set of components
thx for ur help will look into the speakers

***cam2Xrunner*** · 03-21-2005, 12:13 AM

Quote:

Originally Posted by butho33

that means i dont touch the wires from HU ... except that i have to tap the turn on wire from my new amp ?

Exactly

the LOC is connected to my amp ? and i connect all the wires following the color codes ? and i tap the back speakers with a new wire at the LOC ? or i use the factory wiring ? i dun realli get it ...

The LOC is connected to the speaker wires coming out of the factory amp behind your glovebox.

The wires on the left side of the LOC will connect to the output wires on the factory amp. You cut the wire in half, and wire it into the LOC's wire. For the rear channels instead of disconnecting the rear speakers from the amp like you will for the front's, you will just tap into it, leaving the rear speakers powered by the JBL amp.

woah ! nice speakers ... ive read abt it but its alittlebit costly for a set of components
thx for ur help will look into the speakers

Trust me they're definitely worth it, and if your budget is 600 bucks you can get those speakers and an amp for around 600. You will be very satisfied with those speakers.

butho33 · 03-21-2005, 03:07 AM

thanks for ur help

iv got one last question ... if i were to add another amp to my system and i wanna remove the factory amp ... all i do is connect the LOC to my HU and connect the rca to it ryte ?

thanks im looking forward to follow the speakers n amp ... the speakers looks realli tempting

***cam2Xrunner*** · 03-21-2005, 03:11 AM

I'm not sure if the LOC will work without an amped signal. You could however just tap in another LOC and use two, the NE-774V and the N-85V for the sub amp.

Good luck with the install.

butho33 · 03-21-2005, 04:21 AM

i have decided

ill use my JBL hu ....

front speakers
alpine type r 6.5 component system

rear
alpine type r 6x9

amp
kenwood kac 8401

i got 1 question about the LOC ... do i harness it to the JBL HU ? or the amp ?
im thinking of bypassing the amp ...

help ...

***cam2Xrunner*** · 03-21-2005, 12:02 PM

I'm like 99.9% sure it will not work by wiring it to the headunit. The headunit sends 4 signal wires to the external amp behind the glovebox, the amplifier then has the pos. and neg. output wires needed to hook up to the LOC. You need these 8 wires after the amp. It will not accept the single signal wire from the amp.

If you want to bypass the amp you will need a new CD player. Then you will follow the steps in this thread.
http://www.toyotanation.com/forum/t70082.html

So if you want to keep the factory headunit, use the factory amp to send the signal to the LOC, that's the only way to go.