Tapping the output of the head unit
I recently bought a 4 channel amplifier that I want to use to run the 4" components and my SWS subs off of. I've read through a lot of the posts and I've seen where you can plug the balanced outputs of the radio into certain amplifiers. This is exactly what I would do, except that my amplifier has common grounds on the RCA inputs. So my question is this:
How do I take the balances output of the head unit (Professional) and convert it to common ground RCAs? Can I just use a PAC Trunk-LOC for this, or will the impedance of the LOC screw up my head unit?
Thanks for any input you can give me.