One set of Speakers - Two Audio Devices

[Mickey53usa]

Have a travel trailer with a mounted stereo unit (Linear LS4000B by Magnadyne Corp.). Would like to connect the audio out of a TV to the Stereo Speakers. Speakers are hardwired - no RCA or any other inputs to the Stereo, would have to tap the speaker lines. Thought about a simple mixer circuit using resistors to make the connection - Other ideas or "prebuilt" items that I could use?
TIA

 

[Russlk]

The stereo has to have an input, else how do you use it? I would modify the input to accept the TV signal in addition to the normal signal. It is not likley that the TV could drive the stereo's speakers.

 

[audioguru]

If your TV doesn't have line-level outputs to connect to a stereo system, don't touch its built-in speaker wires. One of them could be connected to the AC power line. Get a TV with audio putputs and connect them to the aux input of your stereo system.

 

[gmphadte]

Use a 4 pole changeover switch, or a changeover relay