RCA Y-Adapter Splitter cable 2Pack,1 RCA Male to 2 RCA Female Stereo Audio Video Subwoofer Car Audio Cable Y Splitter Adapter Extension Cord for Home Theater, Hi-Fi System, Amplifier, Speaker-0.6 Feet

Last option, promise. I just noticed your turntable has speaker outputs. That means the turntable has its own preamp (presumably). If the headphone trick doesn't work, you can split the signal coming from the turntable and feed it into the IN on the tape deck. RCA Splitter Basically, get two of these splitters, plug each one into the turntable, use the existing cable that comes from the receiver and plug those into the new splitters, and then plug the other end of the splitter to the IN on the tape deck. Try the headphone thing first if you want. If that doesn't work and need help on this splitter thing, let me know and I can take some pics.