... has anyone upgraded there front and rear speakers in there mach 460 system and if so what size are the door speakers and the rear deck speakers ???
I think they are 6x8 all around, and you can get different sizes to fit with adapter plates bc that size seems to be pretty limited on choices. I do not have the 460 but im pretty sure the speaker sizes were the same anyway. Check out crutchfield.com and you will know for sure.
Yes you can. I redid the entire audio system, Infinity Kappas 6x8's under the rear deck were a drop-in fit and I put Infinity Kappay 6.5" rounds in the doors with a custom adapter plate I made out of PVC. I also put Kappa tweeters in place of the stockers. Sounds incredible especially with the sub and 4-channel amp. Are you keeping the stock head unit or upgrading?
If you want your factory Mach460 amps to power the aftermarket speakers, they have to be 3ohm, which is a weird and rare impedance. Here's a useful site for Mach system information. http://www.flemworld.com/Mach460/Mach.html
If you want your factory Mach460 amps to power the aftermarket speakers, they have to be 3ohm, which is a weird and rare impedance. Here's a useful site for Mach system information. Mach 460 Information