Get a RCA line converter. The easy way: Connect the left and right rear speaker wires to the rca converter $20. Then run a remote led toggle switch from under the hood $4.99 to $9.99. I could not find the remote on the Xterra radio, w/ 6 disc. Plug in the rca's and also run your power to the battery with a fuse. All you have to remember is to turn the toggle switch off because its manual turn off. I have not had any troubles with it so far. Just connect a bright toggle so you remember to turn the amp off.