I have an 85 K5 with a 700r4 tranny. We have the little 4 prong cable plugged into it but there is a second 4 prong cable hanging down in the same area that looks identical to the one we have plugged in and we don't know what it goes to. Are there 2 different cables for the tranny? We can't find anywhere else that this cable would plug into. Any ideas on where this second mystery cable would go or whether it's needed? Thanks.