AM/FM Antenna ?

[PBR Streetgang]

i recently purchased an AM/FM antenna from boatfix but the cable that came with the antenna is to short. the only extension i can find is this http://www.shakespeare-marine.com/antennas/mounts/cable-4352.htm but both ends have male connections. does any know of an extension cable that has a female on one end or where i can find the coupler to attach to male ends together. i looked on the radio shack website and found this http://www.radioshack.com/product/i...&kw=motorola+plug+connector&parentPage=search but i don't think it's what i need.

i just called shakespeare and it seems the picture of the product in the first link is wrong. the extension cable does have a female end.