E30 AC retrofit, how to wire upgraded condenser fan?

[maxG]

I'm doing the r134 retrofit.
I've read many threads, some update to newer fans, some stay with the current one on their old condenser.
I bought a new fan per one of the how to threads, but didn't even think to ask why. It seems sticking with the og fan is a straight forward condenser swap. But I've read the newer fan I got off Amazon is higher flow and results in lower ac temps.

If this is true, the next question is how do I wire it in to work properly? Everyone seems to gloss over that in the how to's. Will I lose any functionality like dual speeds with a new non oem fan?

i thought it would be a simple one to one wire splice. But looking at the wiring bundle to the existing fan, there are more wires. Some go to what might be a resistor mounted to the old fan. Do I keep that with the new fan?

[tomstin]

You can wire it the same as stock one. The resistor permits two speeds when the temperature gets hot.

[maxG]

Ok that's good to know. Is the common experience that the stock one doesn't typically flow as much as the aftermarket ones? I got a 14" 2400 cfm fan, but have no idea how much the stock one flows. I prefer keeping this stock if it's good enough and better quality.

Thx in advance.