Hey guys, im purchasing my first setup of audio items for my first car and have no idea how the compatibility of these items work, specifically with the output spec side. So i am in need of some help and answers to a few questions would be really useful.

I have purchased an active subwoofer which has an inbuilt amplifier, and now i am looking at a Sony XAV-70BT head unit which i am interested in and want to confirm whether they are compatible with each other before i make the purchase. The specs of both items are bellow.

Specs of the head unit :

Connection Box

Audio Video Output 1 (rear)

Ampilifier

S-MOSFET Output Power 52W x 4
Sub Out Yes
EQ7 7-Band Equalizer

Specs of the Active subwoofer:

•Maximum output power: 180W(90Wx2)
•RMS power: 120W(60Wx2)
•External Bass Remote Control
•Output Impedance: 2Ohm+2Ohm
•Frequency: 30~100Hz
•S/N(A): 91dB
•Maximum Current Consumption: 12A
•Sensitivity (Distortion level 1%): RCA input 82mV, Speaker input 0.8V
•Voltage: 14.4V (10V~16V)

I also would like to use my stock speakers for the setup. And continue to use the factory auxiliary input in my 07 FD2, and retain the functionality of my steering wheel mounted controls. Will there be any issues with any of those things ?

Thanks for any input in advance.