People with upgraded speakers...

[smockers83]

I have a question for you people. What speakers have you installed in your G? I love Crutchfield but they say only 3 speakers they carry will fit in the rear side panel. I highly doubt only 3 speakers they carry actually fit in that location.

Also, I'm debating whether to install speakers in the rear side panels or on the rear deck, but not both. Side panels are 6.5", rear deck is 6x9s. If I don't have the Bose system, should the 6x9 cutouts be there? And also, any input on whether to go with the 6.5s or 6x9s would be appreciated.

[smockers83]

anyone?

[Sentientbydesign]

I didn't realize the bose option had rear mounted speakers.

I've been curious about this too, but it's not on my high priority list.

[MarkoG35]

I ponder about the same thing..anyone know?

[C-Kwik]

It's likely the profile of the speaker itself. The three that come up as speakers that fit have top mount depths of 1.75" and lower. Most seem to be much larger. There are other speakers on Crutchfield's site that have mounting depths that are the same, but don't fit. This can easily be attributed to a wider magnet.

I'm thinking Crutchfield lists speakers that fit based on no modification. If there is a factory baffle, it might be shallow enough to cause fitment problems. Some cutting might make enough clearance if this is the case. But I couldn't tell you waht it looks like behind the factory speakers. I think Greg swapped his speakers out. He might be able to shed some light.

[cheapazz]

I messed around with my rear deck speakers when I tied into them for my sub install, also a bose system. There are speakers mounted to the rear deck, don't know if they are above or below but the covering in the trunk (baffle) will limit the depth. If you don't care you could just cut it or have a bulge sticking down.Hope any of this helped

[C-Kwik]

I think he is referring to the 6.5" speakers in the side panels by the rear seat as far as depth limitations. His question about the rear deck pertains to whether or not the cutouts for the 6x9's exist in non-Bose models.

I'd say pull the upper trunk cover (it should only require a partial removal) and you should be able to see if cut outs are there or not.

[smockers83]

This can easily be attributed to a wider magnet.

That's what I was thinking and didn't want to be true. But I ask because the write up on upgrading the speakers, those speakers don't show up, although they probably are out of production now. But even if they were, I would think Infinity would have replaced that product with something else with the same dimensions.

If there is a factory baffle, it might be shallow enough to cause fitment problems.

If there was one, would it be a foam baffle?

[MarkoG35]

How do you know if you have the BOSE or not? Does it say on the stock headunit? And if there is a bose, where is the hidden amp on it? And if i were to replace the hidden amp with a different amp, and wired it up correctly, i could change the speakers without having to rewire correct? and if i got a new headunit i'd just have to run extra RCA's to the amp right?

[smockers83]

Yeah, it says BOSE on the HU and the amp is located in the trunk. If you got just a new amp, yes you could change the speakers without having to rewire. And if you got a new HU, yes you'd just run RCA patch cables to it. Or if you didn't upgrade the amp and you just went with the HU, you would have to bypass the amp with a harness.

[MarkoG35]

i dont have the bose..so what now? i'd just have to run my speaker wires instead of going to the HU goin to the rear to the amp right..

[smockers83]

No, there's an amp for the non-Bose system, too. You would do the same thing as the Bose.

[tollboothwilley]

I have a sedan which came with the BOSE stereo. I swapped out my speakers. I don't really like crutchfield...

for my speakers it was 6.5" in all the doors, components up front coaxial in the back. There was a 8" subwoofer I took out to allow for sound from the subs in the trunk to come up through.

I believe the coupe has the 6x9's in the back, regardless of the BOSE stereo.

[MarkoG35]

so for non bose there still is some kind of 6x9's or something like that in the rear deck? just not installed am i correct? and if im not mistaken the front doors and the lil mirror tweeters are a comp. set..so i'd have to buy comp. speakers for the front doors only..and i can purchase whichever kind of 6X5's in the back doors right..

[smockers83]

Only the Bose setup has the 6x9 woofers, whether its a coupe or not. And yes, the speakers up front are components.

TBW, which speakers did you use?

Well, I lied. I just looked at the wiring diagrams for the audio system. Apparently there isn't an amp on the non-Bose systems, which is weird because every car that I've worked on has had a factory amp. Can someone confirm this?

[MarkoG35]

I looked in my 03 G35X trunk..there is one single 8" slot i belive..in the center..cut out only..so im probably going to just have to run the wiring back from every speaker to the trunk, and then amp them..and im going to drop a 8" mid range in there, and amp it to the max, so it screams.

[C-Kwik]

If there was one, would it be a foam baffle?

I've never seen behind the speakers so I don't know if there is one or not. But if one were to exist, I'd guess it is probably going to be plastic. And more of a half baffle at that. This would be purely based on what I've seen from various OE door speaker set-ups.

I believe the coupe has the 6x9's in the back, regardless of the BOSE stereo.

IIRC, the 6x9's only came with the Bose package.

I looked in my 03 G35X trunk..there is one single 8" slot i belive..in the center..cut out only..so im probably going to just have to run the wiring back from every speaker to the trunk, and then amp them..and im going to drop a 8" mid range in there, and amp it to the max, so it screams.

If you are planning to simply drop a sub into the stock cut out, you may have to seal up any sound leaks between the trunk and the passenger compartment. If sound from behind the speaker leaks around, then you may get some sound cancellation. Particularly with the lower frequencies. I'd probably look for a shallow sub and build a small enclusure into the deck. Not to mention, placing a midrange into the rear deck and blasting it would disrupt the soundstage and create a heavy rear presence. Generally speaking, you want the soundstage to be in front of you and the rear should only be there for fill. Better just to use a sub as we can't really perceive the origin of lower frequencies too well. Also, if you plan to go without an enclosure, make sure the speaker can be used in a free-air configuration.