Bluetooth side: ISSC Bluetooth Baseband Controller IS1005B-307G A64105 0639S05 ISSC IS1601N-G 632SA2627 8012-ZWFA EoN 4mbit flash, 55ns, -40 to +85C, RHOS EN29LV400AB -55RBIP 158906B 0610ODA U3 D AT04 12.0FK Crystal SIWARD rx and tx pads go to rx/tx pins foro TTL UART A on gps module J1 7 All 4 on right, 1 & 3 from right on bottom, 1 and 2 from right on top, 2 from left on top (gnd) 6 3rd pin from left on bottom 5 ? 4 ? 3 ? 2 ? 1 3rd pin from right on top