Another solution is to use the PAC IC-RCA2 adapter. It plugs directly into the port on the bottom of the iPod and then the RCA jacks plug into the JL Audio unit. It needs a 12-volt source and ground but this solution allows the iPod to charge. It also has a 1/8-inch plug to allow other audio devices to be used. This adapter is around $30-40 versus only a few dollars for the RCA-to-1/8-inch plug but the benefits make it worth it.