I'm pretty sure its the amp. When I press the button the box clicks but nothing works, I used to bang it and it would work but its stopped completely. Also i can lower the passenger window fine without a problem. Julien definitely let me know if it works and I'll buy it. Kruked I'll pick yours up if I can't get the s14 one, I'd rather play it safe and keep s14 with s14 but if the s13 works I'll buy it