850 Sport Coupe with alternator (1970-on in USA); with the alternator field relay mounted to the engine bay ceiling (to the right of the ignition coil), what is the position/orientation of the relay? With the wiring terminals (spades) pointing to the right (passenger) side, or to the left (driver) side? Also, can a Sipea T20-12 relay be replaced with a (more-common) T-5170? (they are near identical-looking except for the position of terminal 87). The T20-12 is rated at 20amps/12Volts, anyone know the Amp rating of the T-5170?