Quote Originally Posted by IV73CI View Post
Drift is right.

further to add to this,

Make sure that you hook up the AMP L/R RCA's to the SONY HU - Either REAR or SUB OUT RCA's. (this will depend if your HU has 3 levels of RCA out. FRONT, REAR, SUB.)

Always connect AMPS/SUB Wooofaaa to SUB PRE-OUTS.
ah true, didn't think about whether it'd have three pre-outs or not.. if my googling is correct, it has 3.. so yeah, connect the rcas to the sub out