2 12 in a Lincoln Towncar

Best Buy wouldn't help with what he bought cause it was a floor model.  Something they sold and he bought cheap after the fact.  Fact is, he should have had them hook it up to see if it worked before hand. 

Anyway: 

here's a checklist:

1) Does the amp turn on?     If not you have a power problem.  This is when you pull out the test light to see if you have power, if so you might have a bad ground.  If you have power with the car off check the rem wire (make sure car is on).

2) Are you going RCA from the radio to amp or are you tapping rear speaker wires and going into a high level converter.  If converter is your awnser, check if it has gains and make sure they aren't on zero as mine was when i installed yesterday.  If RCA's from radio:  some pioneer decks do have seperate volume controls and such for your subwoofer outs, and since you didn't say what kinda set-up you have i can't help much.

3) If neither of the above work this is where you double check all your connections, especially in the box.  There's been 2 or 3 times i have put a woofer in a box and forgot to connect the wires to the subs.

Can't really help more than that till you test these things and post again.

I AGREE!  This is BS and I don't care if it was a floor model or not.  This is unacceptable customer service unless they are saying they will not look at it because they didn't install it, or if they specifically said there was no warranty, and THEN only if the sales contract (IE: receipt) specifically states as much.  If any company tried to do that to me they'd have a problem on their hands.