2 Amp, 4 speakers and 2 sub.

Hello guys, I have a Head Unit with 1 pair of RCA output and 2 amps. I currently have a Vibe420 for 2 4ohms sub, and would like to use the Kenwood KAC-644 for the 2front and 2rear speakers. Will this be the correct way of doing it? From the head unit to the Vibe420 channel 1/2 and channel 1/2 output to channel 3/4, channel 3/4 output to the kenwood kac-644? My problem here is that I will only have 2 channel not 4 channel on the kenwood. Would it be better to just amp the front speakers because it have an aftermarket or the rear stock speakers? I also have a cross over network should I use that instead? If so how would I use it.

Items that are being use

JVC KD-330 Head Unit

Vibe420 600 watts, 4 channel amp.

2 audiobahn subs.

Additional Stuff I have

Kenwood KAC-644 4 channel amp

Sony Cross Over Network.

 
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sherbanater

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