Whats best?

[First time modder]

i have pioneer 6x9's on my parcel shelf and an amp to power them, i also have a sony headunit. I have some sony xs-f1720 2-ways but i dont know where to put em, they are 16.5 cm, (6.5 inches), i thought about the back doors (cause my nova is a 5 door) and then put some components in the original dash.Or i thought about putting them in the front doors if they would fit. what do you reckon? would that be an ok setup if i put em in the back, cause i have 6x9's on the shelf? or would it fuck up the sound? cheers, nice one!

[ZuG]

there abit big tbh. I managed to get 5 1/4inch in my doors but its a pain and required cutting holes in the door which i would rather not have done. If you have winding windows they your screwed, if you have eleccy windows then you may be ok. I really really doubt u could get them in the back doors. Sorry not much help but I really dont know where there going to go.
You could put them in hte back but it wont have much effect on the sound. It will never sound too good with all your sound coming from the back. No chance you could replace them with 5 1/4 comps and stick em in the doors?