> The only thing the coil is connected with is pin 15 giving it 12V > after ignition and the collector of a BC338. The BC338 pulls > the coil to ground (well allmost; you lose about 1,4V because > of the transistor and a diode agains reversed polarity). Jan, I'm not up on transistor engineering like I should be, but my main concern would be that you don't put too high a load through the transistor with the new relay. Over a period of several hour's worth of driving, it could get too hot. Walt