ok, i dunno how to attach the map here but google map the last destination should be Galaxy Ampang, it should be in front of IPD Ampang, if u know Tesco ampang than make a u turn @ ampang point fly over back to cheras, entering mrr2 u can find a left exit a bit in front where there is a flat @ both side of the road & just drive staight untill u find a police station on the right, & galaxy ampang on the left, if u exit mrr2 @ ampang point, go straight, the next trafic light to the right after ampang point trafic light & drive straight untill u see Hero supermarket than a bit further u'll see petronas, chappy should be @ the last shop @ the last block of the Hero row.
thats the best i can give coz i suck @ giving directions
maybe papagoines can tell u better