Can I hardwire XM into 04 with RES
 

Help, I've installed my XM Xpress RC. The power is hardwired to the ignition switch on the back of the radio but the audio is currnetly plugged into the AUX-in at the DVD player. Rather than have a wire hanging from the back of the DVD player I'd like to hardwire it in to the back of the radio. Does anyone know how I can make this happen

thanks,
Frank