I'm looking to connect my 42" tv to this system, after looking at everything in the back I'm not sure if it will support audio from my TV, looks like "dock" is for the IPad and the only other in is tape deck. If I plug it into tape deck will I be able to get the sound I'm looking for from my TV? Please reply to my email martell1289@comcast.net. Haven't upgraded my system in 20 years, so I'm unsure this will work.