My friend has a 2004 sport and is trying to install a kicker sub into the stock location in the center console. He has wired everything up properly and had power to it but it wasn't working so he removed the whole thing for the time being, even the amp for the sub. I brought up the suggestions, maybe the amp wasnt rated for the sub/ rest of the units setup, the sub/amp is bad, maybe it wasn't wired properly, and more along those lines. I was also wondering if there was any upgradable internals for the stock amp to make it handle the sub with more ease (mainly cause of how small the housing and location of the amps is). If anyone has any information or advice to help us solve this little issue that would be great. Any and all information is greatly appreciated, thanks in advance to all who can help.