The Project

iTrader: (6)

I need some help.

I picked up some JBL GTO 4x6 speakers thinking they would drop right in and they are too big for the front dash on my 87 TA. The magnet is too big.

Seems the speaker openings are different on Camaro's and Trans Am's due to the top of the dash being a different shape (on mine anyway)

Can you guys provide make and model numbers for 4x6 speakers you have in your Trans Am's.

Thanks

//<86TA>\\

iTrader: (14)

the passengsride is not too bad, but fitting anything in the driverside is tough. I had to rework the dash duct work to fit speakers in both my birds on that side.

Sparkytfl

Whatever Pioneer 4x6 speakers that I bought at walmart a year and a half ago fit perfectly in an 85. Dont have the model number though since I sold the car and the box went with it. I think they were two-way, the price was $42. Receipt has 001256287451 as the upc. All pioneers that I've seen have had smaller than stock magnets.

Willsmith305

Have you tried custom fitting it into your door even when the magnet is too big? How much bigger is the magnet compared to the cutout?

The Project

iTrader: (6)

On the driver side it is not even close. The magnet on the JBL is fairly big (good for sound, bad for dash).

I prefer to keep the speakers in the dash as I'm only keeping the car for a year or two.

Need to finish the Camaro

The Project

iTrader: (6)

I'll have a look...thanks

Willsmith305

Well then have a look at those pioneers. Probably the 3-ways would be best

The Project

iTrader: (6)

I ended up going with up some Aura home drivers (3.5") and a set of Pioneer tweeters. I fabbed up a plate, cut some wire and reconnected everything.

These things really shine.

80schild

iTrader: (5)

Mine has Infinity, they were already in the car when bought it but they seem pull out and drop in easily.

Birdstheword

how did you wire these ?

The Project

iTrader: (6)

Simply wired the positive and negative wires together and attach to the speaker wires from the deck. Essentially turning/wiring two speakers into one.

They ran of the deck's front channels no prob.

The tweets do not have a lot of resistance so the deck is not overloaded.

The Aura's were cheap and decent sounding. www.madisound.com offers some good bargains.

rick90gta

iTrader: (3)

im using the 2-way pioneers. the 3 way magnet was too big to clear the HVAC duct on the driver side

Birdstheword

I went with the JBL P6462 for the front speakers and JBL GTO928 for the rear . I have yet to install the speakers and i am running my stock AC Delco UX1 deck .

kfsullivan

Let us know how the install went as I too am looking to replace my stock speakers and I really don't want to be cutting up the underside of the dash on the drivers side. Hope these slip right in for you. Also let us know how they sound.

IMissMy86TA

My cones were old and wanted newer speakers but wanted to stay very stock but improve the sound since it sounded kinda muddled. I owned a TA back in the day and knew the stock head unit could sound better. it was the age of a paper cone. they were in good shape mind you... So I bought the following off Amazon and bought connector/adaptors from crutchfield so I didnt have to splice anything



Pioneer TS-A6964R A-Series 6"x9" 3-Way 400 Watts
$49.95

Pioneer TS-A4674R A-Series 4"x6" 3-Way 200 Watts
$47.99

they sound better than original stocks did back in the day!

heres a good thread or you... https://www.thirdgen.org/forums/car-...-speakers.html
always read the forums before buying something for our cars.. i did and found out about getting small magnets in FBirds!

jwfirebird

iTrader: (2)

polk db461 fit just barely with no mods to the car or speaker, havent hooked up anything else yet.

kfsullivan

Thanks for the info. These pioneers fit without modifications?

89FormulaGirl

This is great info - my car has no speakers (they were out when I bought it), and I've been looking for replacement speakers. Regarding the Pioneer TS-A4674R 4X6 - the depth is 3.8" according to Amazon's site. Will they fit in the dash of a 1989 Firebird Formula? I've been searching the forum as I noticed the dash speakers are a really tight fit.

IMissMy86TA

yes no mods at all

IMissMy86TA

I think they would fit in formula if they fit a GTA we have a lot more stuff in our dashes...all the toys. I am not digital dash though

Ed1LE

iTrader: (39)

Good deal! Like Polk and these are on Amazon for $51 w/ free shipping!

Ed1LE

iTrader: (39)

I installed the Polks the other week and DID have to modify the dash some. Had to pull out the gauges and trim a portion of the dash opening behind the speed for the speaker to seat all the way. Also had to heat up and massage the duct work some to clear the magnet. No way the left speaker would have fit otherwise. That said, it wasn't major fabrication and definitely worth the effort.

jwfirebird

iTrader: (2)

seems a little weird that it would be different, i had to do none of those, just popped the old out and new in

Reid Fleming

iTrader: (2)

Alpine 4x6" speakers fit in my front dash. (model # SPS-406)

bttrflybird

I have Infinity Reference 4x6, great sound without amp!! Drop-in fit.

Ed1LE

iTrader: (39)

Yeah, I'm not sure why as I've seen several posts on here of these being a drop in for the firebirds. Unless Polk increased the magnet size or something changed with the dash in the later third gens?

jwfirebird

iTrader: (2)

seems more likely they changed the gauge and duct area between 87 and 91

ice3d

I use a pair of Focal 5,25'' in my Trans Am. They have a large magnet. The only problem was that the plastic covers in the dash was blocking for "speaker travel". SO I had to skip those, have not found a good replacement for the covers yet, but the speakers sound beautiful in the dash and with the tweeters mounted just below the dash pad.