Yes, certainly, the parallel relays are quite interesting. If I had another (I wouldn't want to screw up the one in my car) I would check and see if there are any conflicts involving the tracks on (and in, I understand that is a multilayered board?) the existing. Of course one MUST insure there aren't other board revisions, as these also must be completely checked to insure any tracks are identified (or not) that would interfere with other circuits (isolation). Quite an interesting thought George!