Should I Just Install a Front Stage Only?

[CadillacMatt 10+ year member]

how much power do you have up front? Do you have your lows turned up enough?

Running an Infinity 75wx4 channel amp. Kenwoods up front, stock tweeters off head unit up front, and RF Punch 6x9s in the back. I have the EQ set to where it sounds great when all four speakers are playing but it's like a HPF cuts in when the fade is set to the front //content.invisioncic.com/y282845/emoticons/confused.gif.e820e0216602db4765798ac39d28caa9.gif.

I would be willing to try a front fill only setup but not until I have the $$$ to drop on a nice set of component speakers and plenty of damping for the doors.