do you have a receiver you can connect all of your devices to? (TV/VCR/DVD, etc...)
then you could route one pair of RCA cables out of it , slap on the 1/4' cables thedvs01 mentioned and control whatever you wanted.
or if the receiver has an digital out (SP/DIF or COAX digital depending...) that would just require a good quality RCA cable without an adapter, change your REC input on the MPC to Digital and you're set.
if your receiver only has optical out, then you can convert with this:
http://www.musiciansfriend.com/product/ ... sku=701056
I use it and it works great!