My tweeters are in the mirror backs at the moment due to the ease of mounting them there, the ideal place in most cases is in the A pillars just above the highest point of the dash pointing the tweeters at each other, or in some cases at the opposing head restraints. This means the driver tweeter pointed at passenger headrest and visa versa.
as far as speaker choices go...
if you can find a way to get 6.5 inch speakers in ( you may or probably will need to modify the door card and standard mountings) then it would be worth it as you will get a much better midbass response from them. You will also gain more with 6.5s from and sound deadening which you choose to fit.
If not then the speakers you have chosen will be fine.
Thanks for the advice, keeping OEM so 13cm only choice.
Cheers!
