So i recently got a Denon receiver, a used one, a 2309 CI and its great, two problems, when I hook my ipod up using the aux front inputs using a y spreader for stereo sound it plays through thr 5 speakers but leaves the sub out, ive checked troubleshooting and tried every sound mode with no luck, not sure why it would use all 5 speakers but not the sub while using music. Then when I go back to watching TV it goes to Stereo mode and I dont understand how wo get it back to the 5.1 speakers dolby mode, Last time I recalibrated it with the microphone so it would use the 5.1 agagain i cant do that everytime I switch modes. Its only when I switch to this aux input, so it seems like when it switches to stereo mode in aux and I try to go back to dolby it doesnt want to. because if I use my xbox input it works fine when i go back to the TV mode. PLEASE PLEASE PLEASE HELP ME!