4 pin midi type cable power supply

[El Chiguete]

I have a Vox Tonelab LE and the power supply goes in to the TLLE with a 4 pin cable. I would like to get an extension to keep the powerstrip back with the amp and just run the extension cable to the front where the TLLE would be. Where can I fin a cable for this?

[DonP]

Radio Shack might have them.