Attatched is a diagram of the power seat back release option on GM A-bodies for 1970 - 1972. My car did not have a relay under the seat like many of the cars with this option seem to have. Though if you look at this diagram it looks like 1970 did not have a relay but the rest of the wiring is all the same. If anyone knows how to clearly read this (because I can't) please PM me so that I can chat with you about wiring this option back up to my car so it works again. It seems to be a rarely ordered option on the A-bodies and in 70 could only be ordered if you had electric locks (which my car has). Thanks