Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to play your ipod or mp3 through an amp [title] Discern the type of amp you have. [step] Most modern amps have standard rca audio inputs (similar to the red and white inputs on a television) on the back. Both these and the output on your ipod or mp3 player are 3.5 millimeters, so they'll work with standard auxiliary cables.

Ending1: If you have more than 3.5 millimeters and you're plugging your ipod or mp3 system into a vga to play it, this system is powered by electrical power. [title] Locate the power input on the front of your amp. Ending2: Large amps with shorter cables will produce faster usb sound absorption from your ipod to your headphones in minutes. [title] Search for a stereo system that you feel comfortable working with. Ending3: [title] Mark the number of amp leads you have on the cable. [step] These help with describing the size of the audio input on the device you're playing. Ending4: [substeps] Some old models of amps have 6.35 millimeter inputs, which match 1/4 inch headphone adaptors. These won't accept standard 3.5 millimeter auxiliary cables.

Answer format: ending1/ending2/ending3/ending4