1966 barracuda dash speaker size?

[Stagger]

i doesn't have one under my dash...but want to install the correct stock radio with speaker. is the correct speaker size 4"x10" Slim-Line Oval? do i need a bracket to install them under the dash?
herb's parts have listed this size.

thanks fabos for your help.

 

[zhandfull]

Looks like a standard 6X9 mounted on a bracket. The bracket mounts to the dash with just one nut/bolt on each end of speaker.

 

[Stagger]

thanks zhandfull,

so the 6x9 with the bracket will be the correct way to go for a 66'cuda?
the 4x10 like on herberts website is wrong?

 

[zhandfull]

That's the original dash and speaker out of my 66 Barracuda. Speaker measured 6x9, don't have any other 6x9 speakers to compare.