Dashboard sound system modification

[10/10ths]

So......I own a 2004 with the Bose system.

I replaced the dash speakers with these:

https://www.ebay.com/itm/PAIR-JBL-GTO428-4-inch-2-ohm-105-watts-Car-Audio-Speakers-repl-GTO429-/281288625734?hash=item417e1bce46

Only required some minor cutting with a Dremel tool.

Easy, peasy.

What surprised me, was that they not only improved the sound quality, but the entire system volume want up by a pretty significant amount of db's.

If you can find any of these left somewhere, I highly recommend them as a simple plug-n-play mod for the Bose system.

The head unit and everything else is bone stock in my car.

I like where you are going with the crossover, but like the other folks said, these drivers are sub par and getting old, so you should really upgrade the whole speaker system.

FWIW, from my experience above, just R&R'ing the dash speakers alone makes a HUGE difference with the Bose system. i'm getting WAY more base outta the sub woofer and the door woofers just by changing the dash speakers and nothing else.

Good luck, keep us posted.

[Smallblock454]

Originally Posted by 10/10ths

FWIW, from my experience above, just R&R'ing the dash speakers alone makes a HUGE difference with the Bose system. i'm getting WAY more base outta the sub woofer and the door woofers just by changing the dash speakers and nothing else.

That's no wonder. As i've written above the BOSE speaker have a 8 cm (around 3 inch) diameter and the HAES speaker do have 10 cm (around 4 inch) diameter. So for the BOSE system 10 cm mid speakers are a real upgrade in the mid bass range. With the HAES mid speakers there won't be that much difference until you put in real high end mid range speakers that can generate real low end for a 10 cm speaker. So for the BOSE system i would also recommend 10 cm (4 inch) aftermarket speakers.

I'll put the BOSE ones on eBay. In a 996 they will be OK.

[Cunningr]

I have those gto speakers in my dash now, but replacing with 3 way components hertz mille, going active, with a 996 cabriolet bose pasenger subwoofer.

Project gone way overboard! Lol

Almost have the amp interface finished.

I have had infinity kappas, blaupunkt, and jbl. Out of those infinity sounded best to me. Helps putiing in a 996 6 channel amp, the fader will help adjust the door speakers.