I think I know the answer to this one, but thought I'd ask anyway. Are the 92-94 S4 AAN ECU's fully swappable with the 95-95.5 S6 AAN ECU's? In other words, can I take the stock 95.5 S6A ECU and install it in my chipped '93 S4 for some diagnostics and all will be OK? (other than not having the extra kick) Thanks, Ron