Bought a new pair of LSi7 speakers on the web. I'm a novice and want to do a basic single wire connection to each speaker. There do not appear to be any "flat metal jumpers" as described in the owner's manual connecting the two positive and the two negative terminals on each speaker. Could someone smarter than me on this forum explain to me what these look like, whether they are readily apparent (I guess they are clearly visible and easily removed by completely removing lug nuts), and the best place for me to obtain four of these (2 per speaker)? Is there a home-made alternative that works equally well? Thanks in advance.