RCA Problems

i was wondering since i have a reciever with only 1 set of pre-outs, and i want to hook up a 6 channel amp with 3 sets of pre-outs, 1 being a sub pre-out, how would i go about doing this? i was always used to having enough pre-outs to hook up the rca's that it was just plug-n-play. im kinda stuck on this one and was wondering if someone can give me some advice on it. i was thinking using 2 "Y" adapters on one side and 1 "Y" adaptor on the other. im not confident in that idea though, lemme know whats best for me to do. thanks.

get an EQ, takes 1 input and gives 3 outputs,

single output from radio -> EQ -> 3 outputs to front, rear and sub in the amp.

EQ's cost like 30 bucks

can i get that at like a radioshack?

ur better off checking Jamaica Ave or Canal st for a better price