Found this thread

https://www.thirdgen.org/forums/car-...-speakers.html

And wanted to know if there is any updated information on good 4x6 speakers to replace the front. I plan on running the stock configuration 2-way in the front and 3-way in the back with possible a small amplifier. Any recommendations on good speaker that will fit well? Thanks

You can still get the 4x6 speakers from your GM dealer.Part NO.16033662.

Thanks I didn't know that. Is the 6x9 in the rear gm 15173233 ??

No it's 16034422

thanks.

You can order the 4x6 from GM parts direct for half the price that I did,If I had the part no. I would have looked them up first.Google GM PARTS DIRECT AND PUT IN THE PART NO.(on the 4x6) maybe they have the 6x9 also.