I have the 6 speaker stereo system and I want a little more bass. Just to get a full sound out of the audio. I was thinking of replacing either the door speakers or rear speakers with 8" subs but I'm afraid that I'll loose too much mid and high. Has anyone done this, and how does it sound?

And adding a sub and amp in the rear hatch isn't an option for me. I really don't like them taking up space or having to remove it if I need more room.

yup, I did it with polk audio shallow mounts. It does produce some nice bass, but I also have a kicker 12 in the back. If you want good sound quality upgrade your rear speakers and do the sub conversion in the front and upgrade the tweeters. You are going to need a 2 channel amp and the wiring to the doors is kinda annoying. Also make sure you do sound dampening material in your doors so that you don't rattle alot.

http://www.6gc.net/howto/install_subwoofers_in_front_doors

if you can get 8" speaker adapters, you can do this:

How To Upgrade Your Stock 8" Woofers

2 twelves will fit nicely in the cargo area, or get the door panels for the 8 speaker stereo system. It has 8 inch subs in the doors.

im rockin a single 10 with stock speaker and tweeters...

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I know they will fit, just don't want to take up the space or add the weight. I'd love to get the door panels for an 8 speaker system, but finding someone willing to sell them is another issue entirely. If I found someone with one of them, I'd buy the panels, harnesses and amp

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I actually have a few different 10"s and 12"s and different amps sitting in storage. And my part time job, while I'm finishing up my third degree, is working at an automotive aftermarket shop. The sh#ts around me all day. I'm just not into adding that extra to my cars anymore. I like the stock/OEM look all the way around. My last 3 daily drivers, including my current one (01 Camry XLE V6, 05 Accord EX-L V6, 10 RDX turbo Tech edition) all had (have) factory installed sub/s. I love the way it sounds. It's not too much, not too little, and I don't have a box in the trunk/hatch and wiring running from the engine to the trunk/hatch.

Is the factory sub amp in the same location as the main amp? I'd want to put the amp where ever the factory one would go. I may even try to get a factory one.

This post has been edited by Xander_X: Apr 30, 2012 - 10:09 AM

pics.. i cant remember what speakers the 6-speaker system has.. as far as more bass goes, you could always do the 8" subs wherever you wanted them (front or rear) and put a small amp (say a 250 watt kicker) in a concealed location, i.e. under the front passenger seat, or on the back of one of the rear seats (actually in the trunk) where it wouldn't take up much room.

Ok, again, NOTHING is going in the trunk, NOTHING. I'm really not looking for suggestions on WHAT to do, just curious as to who's done the swap and if it sounds good. Doesn't matter, I'm just going to either buy some 8 speaker door panels or buy another set of 6 speaker ones and add the 5 1/2" ... the 8's, at least in pics, just look like 6's that they did the same to. Then find an OEM amp and upgrade all the speakers.

i may have not done this personally to my car (havent had the money or time), but i have helped several ppl do similar to theirs... u r obviously curious about doing this, so why not find out how to do it at the same time.. whats the big deal with a 4"x6" 2"deep amp goin on the back of a seat to power door/rear subs? it takes up literally no space..

not a celica, but this is the general idea of what i was hinting towards, but would suggest smaller amp...
http://www.kia-forums.com/members/optimadr...0703-123349.jpg

otherwise, idk where you would put anything like that and if you want to upgrade you need to put this stuff somewhere.. and if no amp, u may as well not do door/rear subs. those will either draw too much power from the stock components or you would be wasting your money to actually put subs in it.. i have personally seen door subs in a celica (kurt95gt) and they sounded amazing, but HAVE to have some other source of power for them

Idk, I just don't like the look of the amp sticking out. I've become a really big OEM snob in my old age. If it wasn't offered as an option by the respective company or off brand (TRD) is SOME country, I typically don't want it. I will usually sacrifice performance, looks, SOUND, etc in order to keep everything kosher. Hell, I'd LOVE the 25th anniversary badges and mats, but because mines a 99, not a 96, it seems improper. I think it all roots back to about 10 years ago with the Type R craze with everyone putting Type R, Type S, GT-R, SE-R, etc stickers and badges on their cars regardless of what it's make or what they had done to it. Sh*t, you could go to Pep Boys, Advance Auto, AutoZone and get all kinds of lights, shift knobs, petals, stickers, bolt on muffler ... all stuff that gave you massive HP gains, and people ate it up ... hell I was one of them for a while. I have a civic that was practically SCRAPING the ground with an Invader body kit and 18" wheels, full exhaust, turbo, underglow, TV w/ PSone ... you name it ... if it was in the aftermarket catalog I had it or WANTED it lol. That was 10 years ago. I've gone from "tuner" to pretentious automotive hobbyist. It just built up to the point that I just want as little as possible to do with aftermarket. Now I realize that sometimes you kinda have to. I've heard what the stereos sound like with the JBL systems. My 01 Camry XLE had a lesser/similar version. That sounded great, and I'd bet the Celica version sounds better. That being said, the last year of our vehicles was 99 ... do I want to buy someones used factory speakers from that long ago maybe longer? No, going to HAVE to go aftermarket. But I'm sure I can find something in my shop comparable to the factory subs that a factory amp could handle. If I HAVE to go aftermarket all around, I guess I'll just have to hide the amp under the passenger seat.

Now, back to one of my previous questions, does anyone know where the FACTORY sub amp would be located?

I want to say that the amps were below the A/C control panel, in the dash. At least one of them was, in that general vicinity. Don't hold me to it though.

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I know the main one is, I've only had this car 2 weeks and haven't had a chance to tear it all apart yet. I had a couple friends with 6gc back in my tuner days and I remember them having "issues" putting after market systems in because they had to bypass the factory amp and what not and I remember them showing me where it was.

Just not sure if the sub amp would have been located there as well ... might be a answer my toyota parts manager buddy can tell me

This post has been edited by Xander_X: Apr 30, 2012 - 10:58 PM

i respect that u want to keep as much oem as possible, but those speakers are so crappy by today's standards.. we all have to compromise at some point.. stock amp that has to be bypassed is under the driver's seat.. mine is an ST, so i only have the in stereo amp and it didnt have to be bypassed for anything

The information is on here somewhere, I distinctly remember reading about it.

Also, in regards to OEM. Know how you feel. When I redo my audio it's going to be a pain. Don't have anything against aftermarket, just cheap Chinese crap. Finding a Japanese Pioneer head unit, and German MB Quart speakers should be fun...

This post has been edited by Box: Apr 30, 2012 - 11:15 PM

I put 8 inch 300watt subs in my doors an wired them for 1ohm to a 200 watt amp thats under my drivers seat

But i also have 2 12inch subs in the trunk hooked up to the same amp in the trunk

Its not alot of bass with just the 8s but its alot better than stock
Id suggest upgrading the rears to 6x9s too gives alot better sound after you take away some of the highs out from switching to the door subs

i had the 8" kicker subs on the door, its true you add some bass but you lose the mids for clarity. and you have to amp it. I'd just mod it if i were you to support the 6.5" speakers, and get 2 way or 3 way. thats what i did.

This post has been edited by trdproven: May 1, 2012 - 1:40 AM

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I know I'll have to compromise when it comes to speakers. Even if I wanted to keep it to OEM speakers, my only options are 13 - 18 year old used speakers ... no thank you. At least speakers get hidden behind panels. And I'll probably stick with JBL just to feel as close to OEM as possible.


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You know, it's funny you mention MB Quart. I was talking with my supplier yesterday about the decline of audio equipment and all the brands and he was telling me there is a new brand out designed by the original MB Quart engineers ... I can't think of the name off the top of my head. But I'm sure you can find it if you search. I'll talk to my supplier next time I get a chance and get the name for you.


I've just decided to just do an 8 speaker swap/conversion. I'll probably keep my door panels and just install the 5 1/2"s up top, it's a bit against my "OEM" fetish but I think I can made it look damned close to identical. Then add the 8" subs in the doors and, I'm gonna try a factory amp first, if I fail, I fail ... at least I'll know then and get something small and hide it under the passenger seat. I've got like a 12 year old, smaller, Eclipse 2 channel sitting in storage somewhere. I really only want a little bit of bass. Just enough to enrich the sound. I don't ever want people to hear me "bumpin" down the street. It's not a 60's Impala .... it's a Celica.

This post has been edited by Xander_X: May 1, 2012 - 9:30 AM

You mention not wanting all the wiring and extra amp....so do you want good audio? Or OEM audio?

If you simply want OEM, get all the OEM components and install it, sure it will sound OK.....for someone that works in audio daily, no it does not sound good.

Also, if you car is not previously wired for the OEM amp, and such, you'll have quite the enjoyable time installing all of it. Which is where I would suggest scratching the OEM concept, and install an aftermarket solution. The amount of wiring that goes into place for the OEM amp is nearly insane, and would prove interesting to see someone install one that hasn't been cut.

FYI, as you already know, you can install everything cleanly. Snobby OEM tastes or not =P

I have 2 12's in my trunk, and they bang hard...it is a Celica, but that doesn't mean I cannot boom like an "impala" - My sh!t also doesn't rattle and you can hear a full spectrum of audio...

For what it's worth, there was never an OEM sub offered for the Celica, so there would never have been an OEM sub amp. Also, the factory stuff might be old but it can still beat the hell out of low end aftermarket speakers. To look at the back of the stock amped speakers, you see "15w max." One member here (DEATH) once had his factory speakers amped to 250 watts with no issues. It's all really a matter of what you want and how far you want to go. Not saying that you should definitely keep them, but just passing along the information. I've always been fond of the OEM speakers as opposed to aftermarket speakers with no amp.

As far as mounting the speakers in the doors, it's very possible to mount them in your doors and make it look OEM. Check out njccmd2002- he's done it.

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I will admit the stock over the shoulder speakers being 15+years in age have amazinly held up well, and not fallen apart like some of the aftermarket name brands. My fronts have always been busted, in both celicas.

I'm sure the OEM system is ok, it just doesn't cut it for me though.

richee3: Being that I've never SEEN one personally I can't say 100%, but all the information I've found on the 8 speaker Celcia system uses two 8" JBL subwoofers STOCK in the doors, where the 4 and 6 speaker system has regular 6.5" speakers.

rave2n: I agree. I was impressed, when I picked up my Celica, at the quality of sound coming from the factory speakers. Then I remembered that Toyota likes to use JBL and that the 6gc utilized a seperate amp as apposed to a built in one in the head unit. No, they do not sound as good as if I put, let's say, an older Eclipse component set in. That's why I'm going to replace everything with newer JBL speakers.

I'm going to keep the factory amp and head unit. I have no desire for anything flashy. I have a 10 year old 8 volt Eclipse deck in my 91 Legacy Sport turbo that's seen like 4 different vehicles. I refuse to get rid of it, mostly because I don't feel anyone has made anything better quality since, but I'm a bit biased towards pre-buyout Eclipse products. I suppose if I have to wire in an aftermarket amp to power the door subs, then so be it. I'll just attempt to hide it in the dash or under the passenger seat. Amd I'll run the speaker connectors for the original door speakers up to the newly placed 5 1/2's.

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Can't go wrong with JBL! Use those in all studio monitor situations here at the station, and my 2 12's are JBLs. Love me some JBL =)

Using JBL's msrp pricing, replacing factory tweeters, replacing factory rear 6.5's, replacing door 6.5's with 8" shallow subs, and adding 5.25's ... a total of 8 new speaker, plus utilizing one of their compact 2 channel low/high amp ... it'll be around $550. And my cost will be a little less (sadly, my shop isn't a licensed JBL reseller, but we get a bit of a discount.) I think that's a pretty fair price point imho.

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It might use 2 8" JBL subwoofers, but that's all tied into one amp behind the heater controls. I believe the amp is different between the 6 speaker and 8 speaker system, but I'm not entirely sure.

Thinking of buying these for the rear speakers

Earthquake 6.5" Subwoofers

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Much agreed on fair pricing, and sounds like a solid setup.

The 6 speaker has the amp under the climate controls, the 8 speaker stereo has an additional amp mounted under the driver seat

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There we go, bingo. Thanks ... now I wonder where they put the keyless receiver if that's under the seat ... great Toyota ... just keep shovin sh*t under my ass!

I mounted my PDX5 under my drivers seat. It fit just fine and you'd never have known i had an amp in the car unless you saw the sub in the hatch. There's plenty of room under either seat for an amplifier if you want it out of the way.
As far as subs in the doors, i know people have done it, but ill be 100% honest in saying that my type-x 6.5" speakers rattled the hell out of my doors. They sounded fine until i hit ~150 watts RMS. After i went over that mark, the rattles started to come out regardless of how much effort i put into sound deadening. Because of this, i wouldn't ever go as far as throwing an actual sub in the door panels.
Ive never heard a car system sound as good as mine did with the 6.5" drivers up front. Id get some decent components and buy these off of ebay:
http://www.ebay.com/itm/6-Speaker-Adapters...r#ht_1130wt_975

He will be fine with the factory 8, it shouldnt rattle anything.
I found a set of 8 speaker door panels and amp in the salvage yard and my goal is the get rid of my retarded HD radio and 12s . Gonna go back to stock, and put in that 8 speaker premium stereo.