sub troubles

[rick2bass]

just bought a saxo vtr and i had already bought a sub and an amp to install when i got it, i have a juice JA1200D amp and a pioneer sub, the car came with wires already installed so i wired it all up how it shud be done, the power light is green on the amp an when turning the key to power it up the amp lights up and the sub gives a little pop but there is no sound :wall:, can anyone suggest what is wrong and how i can make it work, thanks

[CSta]

Check rca output on headunit, check rca cable, check amp settings?, check connections from amp to sub. check that you've got the rear output on the headunit activated

just a few ideas...