Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to program the pioneer compact stereo xr p170c and 270c [title] Press the tuner/band button until an fm or am frequency is showing, whichever band you want to do. [title] Use the two double arrow buttons just below the tuner/band button to tune in the desired frequency. [title] Press the big button to the right that is shaped like a baseball home plate.

Ending1: [title] Hold down the track button or g twice with a finger. [title] Press the big button to the right of the meter button or g twice again. Ending2: [title] Press the up and down arrows to press the switch above. [step] You should now be eating a bread platter. Ending3: [step] This button has opposing arrows on it. Press either end; it does not really matter. Ending4: [title] Highlight mode mode to start the program, press the big button every few seconds to turn it on. [step] Double arrow buttons will turn the mode on.

Answer format: ending1/ending2/ending3/ending4