Well i'm not sure how exactly you have your subs wired, but it sounds like you have both 10's wired in parallel to the amp which is bridged to 1 channel right? If that is the case, then your amp is seeing a 1 ohm load! You can damage the amp like this! If your subs are single coil 4 ohm, then all you can do safely is wire each sub up to each channel, in non bridged mode. If both subs are wired together(both pos and both neg together), then your total ohms is 2. Now if you bridge your 2 channels together, the amp will see half of the load put upon it, so now the amp will see a 1 ohm load. Just a heads up man, if it is like that...A good way to secure the box that i have used, is to go to home depot, and buy some "L" shaped brackets, and screw them to the side of the box, and then to the frame, but with the tire well right there, you might be able to use metal straps or something like that..

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
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-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)