Using Tape 1or2 Input on Pioneer SX-1980

Howdy folks! I have here a Pioneer SX-1980 receiver. The problem is that I only have one AUX input to spare, and I need another input for my Rose streamer. Since there aren’t two AUX inputs available, can I use one of the TAPE-1 & TAPE-2 for the streamer without causing any harm to the receiver? Please let me know if this is a safe alternative. 🤔