just connect one wire of the fan to the body and the other to the A/C compressor wire or better yet, install a relay. this would insure solid current from the battery to the fan. be sure of the rotation of the fan. should be sucking in air if installed infront of the condenser. reverse the wires to reverse the air direction.
kaya nga may turbo intercooler para relatively cold air ang pumapasok sa intake ng engine. kaya yun intake hose natin nasa gilid kumukuha ng air at hindi sa loob ng engine bay.